{"product_id":"a011595283","title":"NO-Feng-PDiPPPr, L-PrPr2, 99% | 945564-85-2","description":"\u003cstyle\u003e\n  \/* isQuote *\/\n  div.swatch.clearfix {\n    display: none !important;\n  }\n\n  \/* Hide sku *\/\n  .product-sku, \n  #leadtimetext {\n    display: none !important;\n  }\n\n  \/* Square brackets *\/\n  span.l_bracket:before {\n    content: \"[\";\n  }\n  span.r_bracket:after {\n    content: \"]\";\n  }\n\n  \/* Hazard Symbols *\/\n  .ghs-symbols-row {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 10px;\n  }\n\n  .hazard-symbol-container {\n    width: 50px;\n  }\n\n  .hazard-symbol {\n    object-fit: contain;\n    aspect-ratio: 1 \/ 1;\n    width: 100%;\n  }\n\n  \/* Section *\/\n  .section-header {\n    font-size: 1.5rem;\n    font-weight: bold;\n    color: #239ab7;\n    background-color: #f2f2f2;\n    padding: 10px;\n    border-radius: 4px;\n  }\n\n  .section-row {\n    display: grid;\n    grid-template-columns: repeat(8, 1fr);\n    padding: 6px 10px;\n    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class=\"row-value\"\u003eNO-Feng-PDiPPPr, L-PrPr2, 99%\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n        \n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eBrand Name\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003eJ\u0026amp;K\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eProduct Number\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e1595283\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eCAS\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e945564-85-2\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eSDS Document\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e\n                \u003ca href=\"https:\/\/web.jkchemical.com\/partial\/productMsdsFileByProductId\/EN\/12416\/1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView\/Download\u003c\/a\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eCertificate of Analysis (COA)​\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e\n                \u003cdiv class=\"coa-search-container\"\u003e\n                    \u003cinput id=\"coa-link-input\" type=\"text\" placeholder=\"Enter Lot No.\"\u003e\n                    \u003cbutton id=\"coa-search-button\"\u003e\n                        \u003cdiv class=\"coa-search-button-content\"\u003e\n                            \u003csvg class=\"search-spin\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 200 200\"\u003e\u003cradialgradient 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repeatcount=\"indefinite\"\u003e\u003c\/animatetransform\u003e\u003c\/circle\u003e\u003ccircle transform-origin=\"center\" fill=\"none\" opacity=\".2\" stroke=\"#FFFFFF\" stroke-width=\"15\" stroke-linecap=\"round\" cx=\"100\" cy=\"100\" r=\"70\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\n                            \u003cspan\u003eSearch\u003c\/span\u003e\n                        \u003c\/div\u003e\n                    \u003c\/button\u003e\n                    \u003cspan class=\"coa-not-found\"\u003eCOA not found\u003c\/span\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n    \u003c\/div\u003e\n\n    \u003c!-- General Info --\u003e\n    \n        \u003ch2 class=\"section-header\"\u003eGeneral Information\u003c\/h2\u003e\n        \u003cdiv class=\"section-content\"\u003e\n            \n\n            \n            \u003cdiv class=\"section-row\"\u003e\n                \u003cdiv class=\"row-key\"\u003ePubChem CID\u003c\/div\u003e\n                \u003cdiv class=\"row-value\"\u003e53355618\u003c\/div\u003e\n            \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eIUPAC Name\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003e(1R,2S)-N-\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003e2,6-di(propan-2-yl)phenyl\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e-1-\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003e3-\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003e(1R,2S)-2-\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003e\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003e2,6-di(propan-2-yl)phenyl\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003ecarbamoyl\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e-1-oxidopyrrolidin-1-ium-1-yl\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003epropyl\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e-1-oxidopyrrolidin-1-ium-2-carboxamide\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eInChI Key\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003eGRKRBQGUOZNATH-WXKUUGAPSA-N\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003eSMILES\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003eCC(C)C1=C(C(=CC=C1)C(C)C)NC(=O)\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eC@@H\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e2CCC\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eN@+\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e2(CCC\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eN@@+\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e3(CCC\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eC@H\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e3C(=O)NC4=C(C=CC=C4C(C)C)C(C)C)\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eO-\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e)\u003cspan class=\"l_bracket\"\u003e\u003c\/span\u003eO-\u003cspan class=\"r_bracket\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n                \u003c\/div\u003e\n            \n        \u003c\/div\u003e\n    \n\n    \u003c!-- Properties --\u003e\n    \n\n    \u003c!-- Safety Info --\u003e\n    \n        \u003ch2 class=\"section-header\"\u003eSafety Information\u003c\/h2\u003e\n        \u003cdiv class=\"section-content\"\u003e\n            \n\n            \n\n            \n\n            \n                \u003cdiv class=\"section-row\"\u003e\n                    \u003cdiv class=\"row-key\"\u003ePrecautionary Statement\u003c\/div\u003e\n                    \u003cdiv class=\"row-value\"\u003e\n                        \u003cdiv class=\"hazard-grid\"\u003e\n                            \n                                \u003cdiv\u003eP262\u003c\/div\u003e\n                            \n                        \u003c\/div\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n            \n\n            \n\n            \n\n            \n\n            \n\n            \n        \u003c\/div\u003e\n    \n\n    \u003c!-- Application  --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003eApplication\u003c\/h2\u003e\n    \u003cdiv class=\"html-area\"\u003e\n        \u003ch2\u003eProduct Introduction\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eN,N'-Dioxides (Bis-N-oxide Compounds)\u003c\/strong\u003e are an ideal class of \u003cstrong\u003eligands and catalysts for asymmetric synthesis\u003c\/strong\u003e. These chiral N,N'-dioxide compounds overcome the traditional requirement for highly rigid ligand frameworks. Much like a pair of \u003cstrong\u003enunchaku\u003c\/strong\u003e, they combine rigidity and flexibility, allowing precise control over how reactants approach and interact during a chemical reaction. By directing the orientation and encounter of reaction partners, these ligands help ensure that chemical bonds are formed in the desired manner, resulting in high catalytic efficiency and excellent enantioselectivity.\u003c\/p\u003e\n\u003ch2\u003eApplication:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAsymmetric Catalysis\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ch2\u003eRelated articles\u003c\/h2\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca target=\"_blank\" href=\"https:\/\/www.jk-sci.com\/blogs\/innoportal\/fengs-chiral-nitroxide-ligand-can-efficiently-realize-more-than-50-asymmetric-catalytic-reactions\"\u003eFeng's chiral nitroxide ligand: can efficiently realize more than 50 asymmetric catalytic reactions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca target=\"_blank\" href=\"https:\/\/www.jk-sci.com\/blogs\/innoportal\/scientific-research-achievements-of-academician-feng-xiaoming-fengs-chiral-dinitroxide-ligand-catalyst-strong-broad-spectrum-and-good-stereoselectivity\"\u003eChiral Dinitroxide Catalysts: A Breakthrough in Asymmetric Synthesis by Professor Feng Xiaoming\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003c\/div\u003e\n    \n\n    \u003c!-- Faq --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003eFAQ\u003c\/h2\u003e\n    \u003cdiv class=\"html-area\"\u003e\n        \u003cp\u003e\u003cstrong\u003eWhat is NO-Feng-PDiPPPr used for?\u003c\/strong\u003e\u003cbr\u003eNO-Feng-PDiPPPr is primarily used as a \u003cstrong\u003echiral N,N'-dioxide ligand\u003c\/strong\u003e for asymmetric catalysis and enantioselective synthesis. It is widely employed in the construction of chiral metal catalyst systems for stereoselective organic transformations.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the alternative name of NO-Feng-PDiPPPr?\u003c\/strong\u003e\u003cbr\u003eNO-Feng-PDiPPPr is commonly referred to as \u003cstrong\u003eL-PrPr₂ (Feng L₃-PrPr₂)\u003c\/strong\u003e, a member of the Feng chiral ligand family.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of ligand is NO-Feng-PDiPPPr?\u003c\/strong\u003e\u003cbr\u003eIt belongs to the \u003cstrong\u003eFeng Chiral N,N'-Dioxide Ligand Series\u003c\/strong\u003e, a class of privileged ligands recognized for their excellent stereochemical control and broad applicability in asymmetric catalytic reactions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich catalytic reactions can benefit from this ligand?\u003c\/strong\u003e\u003cbr\u003eNO-Feng-PDiPPPr has been applied in numerous asymmetric transformations, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHomologation of α-ketoesters and α-diazoesters\u003c\/li\u003e\n\u003cli\u003eAsymmetric Michael reactions\u003c\/li\u003e\n\u003cli\u003eMannich reactions\u003c\/li\u003e\n\u003cli\u003eCycloaddition reactions\u003c\/li\u003e\n\u003cli\u003eLewis acid catalysis\u003c\/li\u003e\n\u003cli\u003eEnantioselective carbon–carbon bond formation\u003c\/li\u003e\n\u003cli\u003eAsymmetric dearomatization reactions\u003c\/li\u003e\n\u003cli\u003eEnantioselective allylation of ketones\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese transformations benefit from the highly organized chiral environment generated by the ligand–metal complex.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich metal catalysts are commonly used with NO-Feng-PDiPPPr?\u003c\/strong\u003e\u003cbr\u003eThe ligand can coordinate with a variety of Lewis acidic metals, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSc(III)\u003c\/li\u003e\n\u003cli\u003eMg(II)\u003c\/li\u003e\n\u003cli\u003eIn(III)\u003c\/li\u003e\n\u003cli\u003eCu(II)\u003c\/li\u003e\n\u003cli\u003eFe(II\/III)\u003c\/li\u003e\n\u003cli\u003eNi(II)\u003c\/li\u003e\n\u003cli\u003eYb(III)\u003c\/li\u003e\n\u003cli\u003eOther rare-earth metal catalysts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese metal–ligand complexes are widely used in asymmetric synthesis and catalyst development.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan NO-Feng-PDiPPPr be used for pharmaceutical synthesis research?\u003c\/strong\u003e\u003cbr\u003eYes. Chiral N,N'-dioxide ligands are frequently utilized in the synthesis of \u003cstrong\u003eenantioenriched pharmaceutical intermediates, natural products, and biologically active compounds\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are Feng ligands important in asymmetric catalysis?\u003c\/strong\u003e\u003cbr\u003eFeng ligands combine structural rigidity and flexibility within a single framework, enabling precise control over substrate orientation and transition-state organization. This often results in excellent catalytic activity and high enantioselectivity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the advantages of NO-Feng-PDiPPPr compared with conventional chiral ligands?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh enantioselectivity\u003c\/li\u003e\n\u003cli\u003eStrong metal coordination ability\u003c\/li\u003e\n\u003cli\u003eBroad substrate compatibility\u003c\/li\u003e\n\u003cli\u003eExcellent catalytic efficiency\u003c\/li\u003e\n\u003cli\u003eGood structural tunability\u003c\/li\u003e\n\u003cli\u003eWide applicability in asymmetric transformations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes L-PrPr₂ different from other Feng ligands?\u003c\/strong\u003e\u003cbr\u003eL-PrPr₂ is a \u003cstrong\u003eproline-derived N,N'-dioxide ligand bearing 2,6-diisopropylphenyl substituents\u003c\/strong\u003e. Its unique steric environment can significantly influence catalyst activity, substrate scope, diastereoselectivity, and enantioselectivity compared with other Feng ligand derivatives.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan NO-Feng-PDiPPPr be used in Lewis acid catalysis?\u003c\/strong\u003e\u003cbr\u003eYes. It is specifically designed to form highly active chiral Lewis acid complexes with various metal ions and has been widely applied in asymmetric catalytic transformations.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should NO-Feng-PDiPPPr be stored?\u003c\/strong\u003e\u003cbr\u003eThe product is typically stored under \u003cstrong\u003edry, sealed, and light-protected conditions\u003c\/strong\u003e. Long-term storage at \u003cstrong\u003e−20°C\u003c\/strong\u003e is commonly recommended, while commercial specifications may indicate refrigerated storage conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes catalytic performance depend on reaction conditions?\u003c\/strong\u003e\u003cbr\u003eYes. Factors such as \u003cstrong\u003emetal source, solvent, temperature, substrate structure, catalyst loading, and reaction time\u003c\/strong\u003e can significantly influence catalytic activity and enantioselectivity.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n\n    \u003c!-- References --\u003e\n    \n    \u003ch2 class=\"section-header\"\u003eReferences\u003c\/h2\u003e\n    \u003cdiv class=\"section-content\"\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/doi.org\/10.1055\/s-0040-1707222\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eAsymmetric Synthesis of 3,3′-Piperidinoyl Spirooxindoles and Discovery of Stereospecific Cycloadducts as Novel Hedgehog Pathway Modulators\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Synthesis\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2020-08-10\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003eDOI: 10.1055\/s-0040-1707222\u003c\/div\u003e\n                \n            \u003c\/div\u003e\n        \n            \u003cdiv class=\"reference-item\"\u003e\n                \n                    \n                    \u003ca href=\"https:\/\/science-of-synthesis.thieme.com\/app\/text\/?id=SD-222-00157\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n                        \u003ch3\u003eNormal-Electron-Demand Aza-Diels–Alder Reactions\u003c\/h3\u003e\n                    \u003c\/a\u003e\n                    \n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Name: Science of Synthesis\u003c\/div\u003e\n                \n\n                \n                \u003cdiv class=\"publication-item\"\u003ePublication Date: 2016\u003c\/div\u003e\n                \n\n                \n            \u003c\/div\u003e\n        \n    \u003c\/div\u003e\n    \n\n\n    \u003cscript\u003e\n        const coaSearchButton = document.getElementById('coa-search-button');\n        coaSearchButton.addEventListener('click', async function() {\n            const coaLinkInput = document.getElementById('coa-link-input');\n            const spinElement = document.querySelector('.search-spin');\n            const notFoundElement = document.querySelector('.coa-not-found');\n\n            const lot = coaLinkInput.value.trim().toUpperCase();\n            if (lot.length \u003e 0) {\n                spinElement.style.display = 'block';\n                notFoundElement.style.display = 'none';\n\n                const url = `https:\/\/web.jkchemical.com\/partial\/coaFileLotNumber\/${lot}`;\n                await fetch(url).then((res) =\u003e {\n                    if (res.status === 200) {\n                        window.open(url, '_blank');\n                    } else {\n                        notFoundElement.style.display = 'block';\n                    }\n                }).finally(() =\u003e {\n                    spinElement.style.display = 'none';\n                });\n            }\n        });\n    \u003c\/script\u003e\n\n\n\u003c\/div\u003e","brand":"J\u0026K Chemical","offers":[{"title":"1×250MG","offer_id":46419949912254,"sku":"JK1595283_250_MG","price":244.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0506\/0005\/0878\/files\/1595283.png?v=1781686191","url":"https:\/\/www.jk-sci.com\/products\/a011595283","provider":"J\u0026K Scientific LLC","version":"1.0","type":"link"}