A practical Ti-salen catalyst based on dimeric salen ligand for asymmetric addition of trimethylsilyl cyanide to aldehydes

Chengwei Lv; Daqian Xu; Shoufeng Wang

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A practical Ti-salen catalyst based on dimeric salen ligand for asymmetric addition of trimethylsilyl cyanide to aldehydes

机译：一种实用的基于二聚体salen配体的钛salen催化剂，用于将三甲基甲硅烷基氰化物不对称加成到醛中

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摘要

A dimeric salen ligand derived from L-tartaric acid was synthesized through linking two salen units with 1,6-dibromohexane. The corresponding Ti complex was proved to be an efficient catalyst for asymmetric addition of trimethylsilyl cyanide to aldehydes, providing the corresponding optically active trimethylsilyl ether of cyanohydrins with moderate to good enantiomeric excesses and excellent yields under relatively low catalyst loading condition.

机译：通过将两个salen单元与1,6-二溴己烷连接，可以合成衍生自L-酒石酸的二聚salen配体。事实证明，相应的Ti络合物是将三甲基甲硅烷基氰化物不对称加成到醛中的有效催化剂，在相对较低的催化剂负载条件下，提供了相应的旋光性的氰醇三甲基甲硅烷基醚，具有中等至良好的对映体过量，且产率极高。

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来源
《Catalysis Communications》 |2011年第13期|共4页
作者
Chengwei Lv; Daqian Xu; Shoufeng Wang;
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正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
Salen; Asymmetric silylcyanation; Aldehydes; Titanium;

机译：Salen;不对称甲硅烷基氰化;醛;钛;

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专利

1. A practical Ti-salen catalyst based on dimeric salen ligand for asymmetric addition of trimethylsilyl cyanide to aldehydes [J] . Chengwei Lv, Daqian Xu, Shoufeng Wang Catalysis Communications . 2011,第13期

机译：一种实用的基于二聚体salen配体的钛salen催化剂，用于将三甲基甲硅烷基氰化物不对称加成到醛中
2. Mechanistic Investigation of the Asymmetric Addition of Trimethylsilyl Cyanide to Aldehydes Catalysed by Dinuclear Chiral (Salen) titanium Complexes [J] . Belockon Yuri N., Green Brendan, Ikonnikov Nicolai S., European journal of organic chemistry . 2000,第14期

机译：双核手性（Salen）钛配合物催化三甲基氰基氰化物不对称加成醛的机理研究
3. Optimized catalysts for the asymmetric addition of trimethylsilyl cyanide to aldehydes and ketones [J] . Yuri N.Belokon, Nicolai S.Ikonikov, Vitali I.Tararov Tetrahedron . 2001,第4期

机译：用于三甲基甲硅烷基氰化物不对称加成至醛和酮的优化催化剂
4. Asymmetric Ring Opening of Some Terminal Epoxides Catalyzed by Dimeric Type Novel Chiral Co(Salen) Complexes [C] . Santosh Singh Thakur, Wenji Li, Seong-Jin Kim, Asia-Pacific Chemical Reaction Engineering Symposium(APCRE'05); 20050612-15; Gyeongju(KR) . 2005

机译：二聚型新型手性Co（Salen）配合物催化某些末端环氧化物的不对称开环
5. Studies in asymmetric catalysis: Lewis base catalyzed, enantioselective addition of trimethylsilyl cyanide, trimethylsilyltrifluoromethane, and glycolate-derived silyl ketene acetals to aldehydes [D] . Chung, Won-Jin 2008

机译：不对称催化的研究：路易斯碱催化，对映选择性地将三甲基甲硅烷基氰化物，三甲基甲硅烷基三氟甲烷和乙醇酸衍生的甲硅烷基烯酮缩醛加成醛
6. Cooperative Al(Salen)-Pyridinium Catalysts for the Asymmetric Synthesis of trans-Configured β-Lactones by 2+2-Cyclocondensation of Acylbromides and Aldehydes: Investigation of Pyridinium Substituent Effects [O] . Patrick Meier, Florian Broghammer, Katja Latendorf, 2012

机译：配合使用的Al（Salen）-吡啶鎓催化剂通过酰基溴和醛的2 + 2-环缩合不对称合成反式配置的β-内酯：吡啶鎓取代基作用的研究
7. Chiral Salen-Aluminum Complex as a Catalyst for Enantioselective a-Addition of Isocyanides to Aldehydes: Asymmetric Synthesis of 2-(1-Hydroxyalkyl)-5-aminooxazoles [O] . -1

机译：手性盐铝配合物作为向醛酰亚胺的催化剂添加到醛：2-（1-羟基烷基）-5-氨基氧氮杂的不对称合成

A practical Ti-salen catalyst based on dimeric salen ligand for asymmetric addition of trimethylsilyl cyanide to aldehydes

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