Pd-Catalyzed Addition of Organoboronic Acids to Alkynes at Room Temperature
作者:Chang Ho Oh、Arun Kumar Gupta、Ki Seong Kim
DOI:10.1055/s-2005-862362
日期:——
Combination of Pd(OAc) 2 with 2-bromo-1,3-bis-[diphenylphosphenomethyl)]benzene (1) or 2-bromo-1,3-bis-[di-tert-butylphosphenomethyl)]benzene (3) catalyzed hydroarylations and hydroalkenylations of various alkynes more efficiently in terms of reaction time and temperature.
Direct Displacement of Alkoxy Groups of Vinylogous Esters by Grignard Reagents
作者:Anthony J. Brockway、Marcos González-López、James C. Fettinger、Jared T. Shaw
DOI:10.1021/jo102537n
日期:2011.5.6
The direct displacement of alkoxy groups from the β position of aromatic and unsaturated esters and ketones is described. The reaction is chemo- and regioselective, displaying wide substrate scope.
Enantioselective Synthesis of Acyclic α-Quaternary Carboxylic Acid Derivatives through Iridium-Catalyzed Allylic Alkylation
作者:Samantha E. Shockley、J. Caleb Hethcox、Brian M. Stoltz
DOI:10.1002/anie.201707015
日期:2017.9.11
The first highly enantioselective iridium‐catalyzed allylic alkylation that provides access to products bearing an allylic all‐carbon quaternary stereogenic center has been developed. The reaction utilizes a masked acyl cyanide (MAC) reagent, which enables the one‐pot preparation of α‐quaternary carboxylic acids, esters, and amides with a high degree of enantioselectivity. The utility of these products
Stereoselective Coupling Reaction of (2Z)-β-Arylselenocinnamic Esters with Grignard Reagents in Presence of CuI
作者:Xian Huang、Chang-Qiu Zhao
DOI:10.1080/00397919708007069
日期:1997.10.1
Abstract Stereoselective synthesis of trisubstituted alkenes linked with ester groups via coupling reaction of (2Z)-β-arylselenocinnamic esters with Grignardreagents in presence of equal molar quantities of CuI was reported.
摘要 报道了在等摩尔量的 CuI 存在下,通过 (2Z)-β-芳基硒肉桂酸酯与格氏试剂的偶联反应,立体选择性合成与酯基连接的三取代烯烃。
Stereoselecive Synthesis of 3-Alkylcinnamic Esters <i>via</i> Coupling Reaction of (2Z)-3-(Aryltelluro)cinnamic Esters in Presence of CuI
作者:Xian Huang、Chang-Qiu Zhao
DOI:10.1080/00397919708005023
日期:1997.1
Abstract Coupling reaction of (2Z)-3-(aryltelluro) cinnamic esters with Grignardreagents in presence of CuI produced trisubstituted alkenes containing ester groups with retention of configuration.