Approaches to 2-substituted chroman-4-ones: synthesis of (−)-pinostrobin
作者:Kevin J Hodgetts
DOI:10.1016/s0040-4039(01)00567-6
日期:2001.5
Two approaches to optically active 2-substituted chroman-4-ones are described. The first utilized the oxidation of a preformed chroman ring and the second an intramolecular Mitsunobu cyclization. The methodology was applied to the synthesis of the biologically active natural product (−)-pinostrobin (18).
Synthesis of 2′-hydroxychalcones and related compounds in interfacial solid-liquid conditions
作者:A.R. Alcantara、J.Ma. Marinas、J.V. Sinisterra
DOI:10.1016/s0040-4039(01)81030-3
日期:1987.1
A general synthetic method of 2′-hydroxychalcones and 2′-hydroxyphenyl-(2-alkylvynyl) ketones in interfacial solid-liquid conditions, is described. No secondary reactions were observed. The interfacial mechanism is discussed by means of the structure of active sites of solid.