Highly Stereoselective 7-Endo-Trig/Ring Contraction Cascade To Construct Pyrrolo[1,2-a]quinoline Derivatives
摘要:
With the cooperation of Cram's phenonium ion, a novel cascade reaction was illustrated to construct pyrrolo[1,2-a]quinolines as a sole diastereoisomer in good to excellent yields. Preliminary mechanistic studies revealed that the gamma-lactam ring and electron-rich arene are important driving forces for ring contraction.
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。
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.
Synthesis of substituted 1-benzazepin-2-ones via ring-closing olefin metathesis
作者:Scott B. Hoyt、Clare London、Min Park
DOI:10.1016/j.tetlet.2009.02.022
日期:2009.4
1-benzazepin-2-one ring system is an important structural feature of marketed drugs, clinical candidates, and other bioactive molecules. We have developed a new benzazepinone synthesis that employs ring-closingolefinmetathesis as a key step. This route provides efficient access to substituted benzazepinones that are difficult to synthesize via existing procedures.
Highly Stereoselective <i>7-Endo-Trig</i>/Ring Contraction Cascade To Construct Pyrrolo[1,2-<i>a</i>]quinoline Derivatives
作者:Xinyu Li、Cheng Li、Wenjing Zhang、Xiang Lu、Shiqing Han、Ran Hong
DOI:10.1021/ol100220c
日期:2010.4.16
With the cooperation of Cram's phenonium ion, a novel cascade reaction was illustrated to construct pyrrolo[1,2-a]quinolines as a sole diastereoisomer in good to excellent yields. Preliminary mechanistic studies revealed that the gamma-lactam ring and electron-rich arene are important driving forces for ring contraction.