Transannular Enantioselective (3 + 2) Cycloaddition of Cycloalkenone Hydrazones under Brønsted Acid Catalysis
作者:Jana Sendra、Efraim Reyes、Liher Prieto、Elena Fernández、Jose L. Vicario
DOI:10.1021/acs.orglett.1c03190
日期:2021.11.19
Hydrazones derivedfrom cycloalkenones undergo an enantioselective transannular formal (3 + 2) cycloaddition catalyzed by a chiral phosphoric acid. The reaction provides high yields and excellent stereocontrol in the formation of complex adducts with one or two α-tertiary amine moieties at the ring fusion, and these can be converted into very versatile stereodefined decalin- or octahydro-1H-indene-derived
Stereocontrolled synthesis of carbocycles via four successive pericyclic reactions
作者:Roxanne Clément、Christiane M. Grisé、Louis Barriault
DOI:10.1039/b803898h
日期:——
Herein, we report a highly diastereoselective construction of fused carbocycles using four successive pericyclic reactions.
在本文中,我们报告了使用四个连续的周环反应对融合碳环化合物进行非对映选择性的高度构建。
Gold-Catalyzed Synthesis of Substituted Tetrahydronaphthalenes
作者:Christiane M. Grisé、Louis Barriault
DOI:10.1021/ol062582g
日期:2006.12.1
We report a gold-catalyzed benzannulation of 3-hydroxy-1,5-enynes to generate tetrahydronaphthalenes. This mild process proves to be an effective method to synthesize various metasubstituted aromatic rings in good yields. [reaction: see text]