Bobbitt’s Salt-Mediated Oxidation of Alkynyl-ols and -diols to the Corresponding Aldehydes and Their Application in Tandem Reactions
作者:James M. Bobbitt、Nicholas A. Eddy、Christian Brückner、William F. Bailey、Nabyl Merbouh
DOI:10.1021/acs.joc.2c02828
日期:2023.3.3
4-hydroxy-2-butynal or acetylene dicarboxaldehyde, and the resulting stable dichloromethane solutions containing the chemically sensitive acetylene aldehydes were used directly in subsequent Wittig, Grignard, or Diels–Alder reactions. This method provides safe and efficient access to propynals and allows the preparation of polyfunctional acetylene compounds from readily accessible starting material without the
Transition-metal-catalyzed cycloisomerization reactions with skeletalrearrangement of 1,n-enynes to afford cyclic dienes (particularly exo-cyclization products) have been well studied. However, there are few reports on the nonmetal-catalyzed skeletalrearrangement of enynes and skeletalrearrangement of electron-deficient enynes such as n-en-2-ynones. Here, we describe BF3·MeCN-catalyzed synthesis