Pyrrolidine and Piperidine Formation via Copper(II) Carboxylate-Promoted Intramolecular Carboamination of Unactivated Olefins: Diastereoselectivity and Mechanism
作者:Eric S. Sherman、Peter H. Fuller、Dhanalakshmi Kasi、Sherry R. Chemler
DOI:10.1021/jo070321u
日期:2007.5.1
olefin substrates examined were more reactive than those with internal olefins, and the latter terminated in elimination rather than carbon−carbonbondformation. The efficiency of the reaction was enhanced by the use of more organic soluble copper(II) carboxylate salts, copper(II) neodecanoate in particular. The reaction times were reduced by the use of microwave heating. High levels of diastereoselectivity
Palladium-catalyzed selective aminoamidation and aminocyanation of alkenes using isonitrile as amide and cyanide sources
作者:Huanfeng Jiang、Hanling Gao、Bifu Liu、Wanqing Wu
DOI:10.1039/c4cc07743a
日期:——
An efficient aminoamidation and aminocyanation reaction of alkenes has been developed for the synthesis of substituted indolines, tetrahydroisoquinolines and pyrrolidines.
已开发出一种高效的烯烃氨酰化和氨基氰化反应,用于合成取代吲哚烷、四氢异喹啉和吡咯烷。
Synthesis of nitrogen heterocycles via Pd-catalyzed cross-coupling of o-alkenyl anilides with vinylic halides and triflates
作者:Richard C. Larock、Paola Pace、Hoseok Yang、Charles E. Russell、Sandro Cacchi、Giancarlo Fabrizi
DOI:10.1016/s0040-4020(98)00589-4
日期:1998.8
The palladium-catalyzed cross-coupling of o-allylic and o-vinylic anilides with vinylic halides and triflates produces substituted nitrogen heterocycles in good to high yields by a process involving vinylpalladium addition to the olefin, rearrangement to a π-allylpalladium intermediate and subsequent intramolecular nucleophilic displacement of palladium. Different reactivity and regioselectivity in the
Enantioselective Synthesis of 2-Bromomethyl Indolines via BINAP(S)-Catalyzed Bromoaminocyclization of Allyl Aniline
作者:Sheng-Nan Yu、Yin-Long Li、Jun Deng
DOI:10.1002/adsc.201700106
日期:2017.7.17
An enantioselective bromoamination of allyl aniline with N‐bromosuccinimide (NBS) catalyzed by BINAP(S) (BINAP monosulfide) is described. This protocol could provide a range of chiral 2‐bromomethyl indolines in good to excellent yields with up to 87% ee. Furthermore, the resulting chiral 2‐bromomethyl indolines could be easily converted into synthetically useful chiral building blocks.
Palladium-Catalyzed Alkene Carboamination Reactions of Electron-Poor Nitrogen Nucleophiles
作者:Luke J. Peterson、John P. Wolfe
DOI:10.1002/adsc.201500334
日期:2015.7.6
Modified reaction conditions that facilitate Pd‐catalyzed alkene carboamination reactions of electron‐deficient nitrogennucleophiles are reported. Pent‐4‐enylamine derivatives bearing N‐tosyl or N‐trifluoroacetyl groups are coupled with aryl triflates to afford substituted pyrrolidines in good yield. These reactions proceed via a mechanism involving anti‐aminopalladation of the alkene, which differs