Palladium-Catalyzed Electrochemical Allylic Alkylation between Alkyl and Allylic Halides in Aqueous Solution
作者:Yin-Long Lai、Jing-Mei Huang
DOI:10.1021/acs.orglett.7b00473
日期:2017.4.21
A new route for the direct cross-coupling of alkyl and allylic halides using electrochemical technique has been developed in aqueous media under air. Catalyzed by Pd(OAc)2, the Zn-mediated allylicalkylations proceed smoothly between a full range of alkyl halides (primary, secondary, and tertiary) and substituted allylic halides. Protection–deprotection of acidic hydrogen in the substrates is avoided
Synthesis and structure of an imido-tethered Schrock carbene of molybdenumElectronic supplementary information (ESI) available: Synthetic details for the generation of 2-(3,3-dimethypent-4-enyl)aniline (1) and the tethered molybdenum carbene 4. Tables for the X-ray diffraction study on 4. See http://www.rsc.org/suppdata/dt/b3/b311320p/
作者:James T. Ciszewski、Baohan Xie、Changsheng Cao、Aaron L. Odom
DOI:10.1039/b311320p
日期:——
An 8-membered molybdenum azametallacycle, where a MoC bond and a MoN bond are linked, incorporating two triflate co-ligands has been synthesized and structurally characterized.
我们合成了一种 8 元钼叠氮金属环,其中连接着一个 MoC 键和一个 MoN 键,并包含两个三late 共配位体,其结构特征已被确定。
A convenient coupling reaction of allyl alcohols with grignard reagents using 1-chloro-2-methyl-N,N-tetramethylenepropenylamine
作者:Tamotsu Fujisawa、Sachio Iida、Hisashi Yukizaki、Toshio Sato
DOI:10.1016/s0040-4039(00)94190-x
日期:1983.1
1-Chloro-2-methyl-N,N-tetramethylenepropenylamine was found to be a good condensation reagent for a regioselective coupling reaction of allyl alcohols with Grignard reagents under mild conditions to afford olefinic products.
The direct formation of functionalized alkyl(aryl)zinc halides by oxidative addition of highly reactive zinc with organic halides and their reactions with acid chlorides, .alpha.,.beta.-unsaturated ketones, and allylic, aryl, and vinyl halides
作者:Lishan Zhu、Richard M. Wehmeyer、Reuben D. Rieke
DOI:10.1021/jo00004a021
日期:1991.2
Highly reactive zinc, prepared by the lithium naphthalenide reduction of ZnCl2, readily undergoes oxidative addition to alkyl, aryl, and vinyl halides under mild conditions to generate the corresponding organozinc compounds in excellent yields. Significantly, the reaction will tolerate a spectrum of functional groups on the organic halides. Accordingly, this approach can now be used to prepare a wide variety of highly functionalized organozinc compounds. In the presence of Cu(I) salts, the organozinc compounds cross-couple with acid chlorides, conjugatively add to alpha,beta-unsaturated ketones, and regioselectively undergo S(N)2' substitution reactions with allylic halides. They also cross-couple with aryl or vinyl halides with Pd(0) catalysts.