{"product_id":"a012699022","title":"NO-Feng-PBuPPi, L-PitBu, 95% | 959152-93-3","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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1.3rem !important;\n    line-height: 1.5rem !important;\n  }\n\n  \/* SDS Search *\/\n  .section-row .coa-search-container {\n    display: flex;\n    align-items: center;\n    margin-top: 6px;\n  }\n\n  .section-row .coa-search-container input {\n    border: 1px solid #e0e0e0;\n    height: 2.5rem;\n    border-top-left-radius: 0.5rem !important;\n    border-bottom-left-radius: 0.5rem !important;\n    padding: 3px 5px;\n  }\n\n  .section-row .coa-search-container button {\n    height: 2.5rem;\n    line-height: 2.5rem;\n    border-radius: 0 0.5rem 0.5rem 0;\n  }\n\n  .section-row .coa-search-container button .coa-search-button-content {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    gap: 3px;\n  }\n\n  .section-row .coa-search-container button .coa-search-button-content .search-spin {\n    display: none;\n    width: 2rem;\n  }\n\n  .section-row .coa-search-container .coa-not-found {\n    display: none;\n    margin: 0 0 0 2rem;\n    color: #ad2031;\n    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class=\"row-value\"\u003eNO-Feng-PBuPPi, L-PitBu, 95%\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\"\u003e2699022\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\"\u003e959152-93-3\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eMolecular Formula\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003eC23H44N4O4\u003c\/div\u003e\n        \u003c\/div\u003e\n        \n\n        \n        \u003cdiv class=\"section-row\"\u003e\n            \u003cdiv class=\"row-key\"\u003eMolecular Weight\u003c\/div\u003e\n            \u003cdiv class=\"row-value\"\u003e440.62\u003c\/div\u003e\n        \u003c\/div\u003e\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\/25286\/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 id=\"a7\" cx=\".66\" fx=\".66\" cy=\".3125\" fy=\".3125\" gradienttransform=\"scale(1.5)\"\u003e\u003cstop offset=\"0\" stop-color=\"#FFFFFF\"\u003e\u003c\/stop\u003e\u003cstop offset=\".3\" stop-color=\"#FFFFFF\" stop-opacity=\".9\"\u003e\u003c\/stop\u003e\u003cstop offset=\".6\" stop-color=\"#FFFFFF\" stop-opacity=\".6\"\u003e\u003c\/stop\u003e\u003cstop offset=\".8\" stop-color=\"#FFFFFF\" stop-opacity=\".3\"\u003e\u003c\/stop\u003e\u003cstop offset=\"1\" stop-color=\"#FFFFFF\" stop-opacity=\"0\"\u003e\u003c\/stop\u003e\u003c\/radialgradient\u003e\u003ccircle transform-origin=\"center\" fill=\"none\" stroke=\"url(#a7)\" stroke-width=\"15\" stroke-linecap=\"round\" stroke-dasharray=\"200 1000\" stroke-dashoffset=\"0\" cx=\"100\" cy=\"100\" r=\"70\"\u003e\u003canimatetransform type=\"rotate\" attributename=\"transform\" calcmode=\"spline\" dur=\"2\" values=\"360;0\" keytimes=\"0;1\" keysplines=\"0 0 1 1\" 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\n    \u003c!-- Properties --\u003e\n    \n\n    \u003c!-- Safety Info --\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-PBuPPi used for?\u003c\/strong\u003e\u003cbr\u003eNO-Feng-PBuPPi is primarily used as a \u003cstrong\u003echiral N,N'-dioxide ligand\u003c\/strong\u003e for asymmetric catalysis and enantioselective synthesis. It is commonly employed in 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-PBuPPi?\u003c\/strong\u003e\u003cbr\u003eNO-Feng-PBuPPi is commonly referred to as \u003cstrong\u003eL-PitBu\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-PBuPPi?\u003c\/strong\u003e\u003cbr\u003eIt belongs to the \u003cstrong\u003eFeng Chiral N,N'-Dioxide Ligand Series\u003c\/strong\u003e, a class of privileged ligands widely used in asymmetric catalytic reactions due to their excellent stereochemical control.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is L-PitBu ligand?\u003c\/strong\u003e\u003cbr\u003eL-PitBu is the abbreviated name of NO-Feng-PBuPPi, a chiral N,N'-dioxide ligand developed for asymmetric catalysis.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan NO-Feng-PBuPPi improve enantioselectivity?\u003c\/strong\u003e\u003cbr\u003eYes. Its chiral framework enables efficient stereochemical induction and can deliver high enantiomeric excess in many asymmetric reactions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs NO-Feng-PBuPPi suitable for catalyst development?\u003c\/strong\u003e\u003cbr\u003eYes. It is widely used in catalyst screening, ligand optimization, and asymmetric reaction development programs.\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-PBuPPi can be applied in a variety of asymmetric transformations, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAsymmetric Michael reactions\u003c\/li\u003e\n\u003cli\u003eMannich reactions\u003c\/li\u003e\n\u003cli\u003eAldol 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\u003c\/ul\u003e\n\u003cp\u003eThese reactions benefit from the ligand's ability to create a highly organized chiral environment around the metal center.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich metal catalysts are commonly used with NO-Feng-PBuPPi?\u003c\/strong\u003e\u003cbr\u003eThe ligand is compatible with a range of Lewis acidic metals, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSc(III)\u003c\/li\u003e\n\u003cli\u003eCu(II)\u003c\/li\u003e\n\u003cli\u003eFe(II\/III)\u003c\/li\u003e\n\u003cli\u003eMg(II)\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 research.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan NO-Feng-PBuPPi be used for pharmaceutical synthesis research?\u003c\/strong\u003e\u003cbr\u003eYes. Chiral N,N'-dioxide ligands are frequently employed in the synthesis of \u003cstrong\u003eenantioenriched pharmaceutical intermediates, natural products, and biologically active molecules\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, enabling precise control of 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-PBuPPi 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\u003eHow should NO-Feng-PBuPPi be stored?\u003c\/strong\u003e\u003cbr\u003eStore in a cool, dry place under sealed conditions. For long-term storage, low-temperature storage and protection from moisture and light are recommended.\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 metal source, solvent, temperature, substrate structure, catalyst loading, and reaction time can significantly affect catalytic activity and enantioselectivity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes L-PitBu different from other Feng ligands?\u003c\/strong\u003e\u003cbr\u003eL-PitBu contains a tert-butyl-substituted aromatic framework, which can influence steric effects around the catalytic center and may provide different selectivity profiles compared with other Feng ligand derivatives.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan NO-Feng-PBuPPi 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, making it useful for numerous asymmetric catalytic transformations.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n\n    \u003c!-- References --\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":45327526887614,"sku":"JK2699022_250_MG","price":487.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0506\/0005\/0878\/files\/2699022.png?v=1781683411","url":"https:\/\/www.jk-sci.com\/products\/a012699022","provider":"J\u0026K Scientific LLC","version":"1.0","type":"link"}