CAS: 101-02-0; Triphenyl Phosphite

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CAS号108-95-2 苯酚 | CAS号187737-37-7 propene | CAS号67-56-1 甲醇 | CAS号7719-12-2 三氯化磷 | CAS号139-02-6 苯酚钠 | CAS号54921-72-1 phenyl H-phosph... | CAS号80733-03-5 bis(2,2-dimethy... | CAS号3426-89-9 苯氧基亚磷酰二氯 | CAS号1077-05-0 1,3,2-Dioxaphos... | CAS号4712-55-4 磷酸二苯酯 | CAS号2510-86-3 Phosphoric acid... | CAS号108-95-2 苯酚 | CAS号2310-89-6 hydroxy-oxo-phe... | CAS号115-86-6 磷酸三苯酯 | CAS号3577-87-5 二苯基亚膦酸甲酯 | CAS号504-24-5 4-氨基吡啶 | CAS号91608-15-0 三(2,4,6 -三甲氧基苯基)膦 | CAS号1958-56-1 3-methyl-N-(2-p...

Triphenylphosphite-Borane Complex置于4 A Molecular Sieve 叔丁醇体系中,用 四氢呋喃 用作溶剂,化学反应 72.0H,以100%的收率获得亚磷酸三苯酯
参考文献:A Novel Mild Deprotection Method For Phosphine-boranes
标题:A Novel Mild Deprotection Method For Phosphine-boranes
摘要:以乙醚溶剂和醇的混合物中加入4å分子筛处理膦硼烷,可在定量产率下得到去保护的游离膦.在大多数情况下,通过简单的过滤/结晶程序即可获得这些膦.值得注意的是,当前的方法首次成功应用于膦酸硼烷的去保护.
Doi:10.1246/bcsj.77.1931

专利信息

专利号:US-9266915-B2
优先权日:2012-09-24
标题 :Synthesis of open metal carbonyl clusters
发明人：KATZ ALEXANDER S; KUPERMAN ALEXANDER; OKRUT ALEXANDER; RUNNEBAUM RON C; OUYANG XIAOYING
权利人:CHEVRON USA INC; UNIV CALIFORNIA
摘要:The present invention is directed to the synthesis of novel stable open metal clusters by selective oxidation of bound ligands. The synthesis comprises, for example, using an amine based oxidant for decarbonylation of specific carbonyl ligands. The synthesis can also comprise further removal of a bound amine group by an acid. The resulting metal cluster contains a coordinatively unsaturated site comprising a carbonyl vacancy. The resulting metal cluster can be used as a catalyst in a variety of chemical transformations.

专利号:US-6048975-A
优先权日:1991-09-12
标 题:Process for the chemical synthesis of oligonucleotides
发明人：PFLEIDERER WOLFGANG; BERGMANN FRANK
权利人:HOECHST AG
摘要:A process for the chemical synthesis of oligonucleotides n Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. n The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quantities.

专利号:WO-9961509-B1
优先权日:1998-05-21
标题:Synthesis of semi-crystalline polyphthalamides through reactive extrusion of hexamethylene terephthalamide oligomer with lower melting, semi-crystalline or amorphous polyamides
发明人：LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
权利人:LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
摘要:This invention relates to the synthesis of semi-crystalline polyphthalamides (i.e. containing monomeric units of terephthalic acid and hexamethylene diamine) through reactive extrusion of hexamethylene terephthalamide oligomer, or the oligomer of another 6T-rich copolymer, with lower melting semi-crystalline or amorphous polyamides. This process is particularly useful since it is centered around the use of stirred autoclaves for the synthesis of the 6T oligomer and the semi-crystalline or amorphous polyamides which are subsequently combined in a twin screw extruder equipped for devolatilization of water of reaction. It can also be used for the modification of existing semi-crystalline or amorphous polyamides (not necessarily phthalamides) with low levels of 6T.

专利号:US-11136335-B2
优先权日:2016-06-30
标题:Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof
发明人：CHASE CHARLES E; CHOI HYEONG-WOOK; ENDO ATSUSHI; FANG FRANCIS G; KIM DAE-SHIK
权利人:EISAI R&D MAN CO LTD
摘要:The invention provides methods for the synthesis of a halichondrin macrolides or analogs thereof through a cyclization reaction strategy. The strategy of the present invention involves subjecting an intermediate to Prins reaction conditions to afford a macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides or analogs thereof and methods for preparing the same.

专利号:US-5945524-A
优先权日:1990-09-14
标 题 :Process for the chemical synthesis of oligonucleotides
发明人：PFLEIDERER WOLFGANG; BERGMANN FRANK
权利人:HOECHST AG
摘要:Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. n The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quantities.

专利号:US-5824801-A
优先权日:1996-01-19
标 题:Process for sterospecific synthesis of keto-enol tautomeric mixture of p nitrobenzyl (1R, 6R, 7R)-7-phenoxyacetamido-3-oxo-3-cepham-4-(R/S)-carboxylate-1-oxide and p-nitrobenzyl (1R, 6R, 7R)-7-phenoxyacteamido-3-hydroxy-3-cephem-4-carboxylate-1-oxide
发明人：GUPTA NIRANJAN LAL; SANKARAN RAMANATHAN; CHATTEJEE SUGATA; KRISHNA TUMMA HARI
权利人:LUPIN LAB LTD
摘要:A process for the stereospecific synthesis of keto-enol tautomeric mixture of p-nitrobenzyl (1R,6R,7R)-7-phenoxyacetamido-3-oxo-3-cepham-4-(R/S)-carboxylate-1-oxide and p-nitrobenzyl (1R,6R,7R)-7-phenoxyacetamido-3-hydroxy-3-cephem-4-carboxylate-1-oxide is described. These compounds are valuable intermediates for the synthesis of cephalosporin antibiotics e.g. cefaclor.