CAS: 64896-28-2; (2S,3S)-Butane-2,3-Diylbis(Diphenylphosphine)

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CAS号64896-27-1 (2R)-BORNANE-10... | CAS号65567-06-8 锂 二苯基磷化物 | CAS号41593-58-2 硼烷二苯基膦络合物 | CAS号603-35-0 三苯基膦 | CAS号81495-76-3 1-methylsulfony... | CAS号1079-66-9 氯代二苯基膦 | CAS号94665-50-6 (2S,3S)-BIS(DIC...

📜Diphenylphosphineborane置于三乙烯二胺,Lithium Hexamethyldisilazane体系中,用 四氢呋喃,甲苯 作为反应溶剂,化学反应 22.0H,反应生成 硫酰氯
参考文献:新型c2和c1对称chiraphos衍生物的合成及其在钯催化miyaura-Michael反应中的应用
标题:新型c2和c1对称chiraphos衍生物的合成及其在钯催化miyaura-Michael反应中的应用
摘要:一种合成 C2 和 C1 对称 Chiraphos 衍生物的新方法及其在 Pd 催化芳基硼化合物与 α,β-不饱和羰基化合物的 1,4-加成反应中的应用
DOI:10.1246/cl.130375

专利信息

专利号:US-8410320-B2
优先权日:2010-12-07
标 题 :Method for synthesis of secondary alcohols
发明人：CHENG CHIEN-HONG; KARTHIKEYAN JAGANATHAN; HUANG PANG-CHI
权利人:CHENG CHIEN-HONG; KARTHIKEYAN JAGANATHAN; HUANG PANG-CHI; NAT UNIV TSING HUA
摘要:A method for synthesis of secondary alcohols is provided for pharmaceutical secondary alcohol by addition of organoboronic acids with aldehydes in presence of the cobalt ion and bidentate ligands as the catalyst. In addition, an enantioselective synthesis method for secondary alcohols is also herein provided in the present invention. The present invention has advantages in using less expensive cobalt ion and commercially available chiral ligands as the catalyst, wide scope of organoboronic acids and aldehydes compatible with this catalytic reaction and achieving excellent yields and/or enantiomeric excess.

专利号:US-9518034-B2
优先权日:2013-10-14
标题 :Synthesis of chiral enaminones, their derivatives, and bioactivity studies thereof
发明人：STOLTZ BRIAN M; DOUGHERTY DENNIS A; DUQUETTE DOUGLAS; DUFFY NOAH
权利人:CALIFORNIA INST OF TECHN
摘要:This invention provides enantioenriched heterocyclic enaminone compounds with quaternary stereogenic centers and novel methods of preparing the compounds. Methods include the method for the preparation of a compound of formula (I): n ncomprising treating a compound of formula (II):n n nwith a transition metal catalyst under alkylation conditions.

专利号:US-11377396-B2
优先权日:2014-12-18
标题 :Enantioselective synthesis of α-quaternary Mannich adducts by palladium-catalyzed allylic alkylation
发明人：STOLTZ BRIAN M; NUMAJIRI YOSHITAKA; PRITCHETT BEAU P; CHIYODA KOJI
权利人:CALIFORNIA INST OF TECHN
摘要:This invention provides enantioenriched Mannich adducts with quaternary stereogenic centers and novel methods of preparing the compounds. Methods include the method for the preparation of a compound of formula (I): n ncomprising treating a compound of formula (II):n n nwith a transition metal catalyst under alkylation conditions.

专利号:US-6380416-B2
优先权日:1997-06-13
标题:Asymmetric synthesis catalyzed by transition metal complexes with rigid chiral ligands
发明人：ZHANG XUMU
权利人:PENN STATE RES FOUND
摘要:This invention is to develop novel transition metal catalysts for the practical synthesis of important chiral molecules. The invention emphasizes asymmetric catalysis based on chiral bidentate phosphine ligands with cyclic ring structures which could be used to restrict conformational flexibility of the ligands and thus the efficiency of chiral transfer can be enhanced through the ligand rigidity.

专利号:EP-1030854-B1
优先权日:1997-11-12
标题 :Catalysts for asymmetric synthesis containing rigid chiral ligands
发明人：ZHANG XUMU
权利人:PENN STATE RES FOUND
摘要:This invention is to develop novel transition metal catalysts for the pratical synthesis of important chiral molecules. The invention emphasizes asymmetric catalysis based on chiral bidentate phosphine ligands with cyclic ring structures which could be used to restrict conformational flexibility of the ligands and thus the efficiency of chiral transfer can be enhanced through the ligand rigidity.

专利号:US-2008280855-A1
优先权日:2005-06-22
标 题 :Process For the Production of Intermediates For the Preparation of Tricyclic Benzimidazoles
发明人：CHIESA MARIA VITTORIA; PALMER ANDREAS; BUHR WILM; ZIMMERMANN PETER JAN; BREHM CHRISTOF; SIMON WOLFGANG-ALEXANDER; POSTIUS STEFAN; KROMER WOLFGANG; ZANOTTI-GEROSA ANTONIO
权利人:NYCOMED GMBH
摘要:The invention relates to a process for the synthesis of compounds of the formula 1-a and compounds of the formula 1-b. n n n n n n n n n n The compounds of the formula 1-a and the compounds of the formula 1-b, in which the substituents R1, R2, R3, and Ar have the meanings indicated in the description, are valuable intermediates for the preparation of pharmaceutically active compounds.