A Direct, Straightforward Conversion of Methoxymethyl Ethers into Acetates
作者:M. P. Bosch、I. Petschen、A. Guerrero
DOI:10.1055/s-2000-6258
日期:——
The direct transformation of MOM-protected alcohols into the corresponding acetates by acetic anhydride/ferric chloride in CH2Cl2, in a one-step process and good to excellent yields, is reported. The reaction has been applied to a variety of substrates and occurs with retention of configuration.
Male-specific volatiles released by Homalinotus validus (Coleoptera: Curculionidae) include (1R,2S)-grandisyl acetate, a new natural product
作者:Diogo M. Vidal、Sandra M.S. Gomes、Wittko Francke、Olzeno Travisan、Mauro A.C.M. Rodrigues、Paulo H.G. Zarbin
DOI:10.1016/j.tetlet.2016.12.037
日期:2017.1
Homalinotus validus is an important pest of babassu palm (Attalea speciosa) cultures in North Brazil. Investigations on the chemical ecology of this species are essential for the development of an integrated pest management system, since attempts to control the pest by conventional insecticides failed. GC/MS and GC/FT-IR analyses of headspace volatiles obtained from males and females revealed the presence of two male specific compounds, which were identified to be (1R,2S)-grandisol and the new (1R,2S)-grandisyl acetate. Both compounds presumably act as an aggregation pheromone of the species. (C) 2016 Elsevier Ltd. All rights reserved.
Studies on terpenes. 4. Synthesis of optically active grandisol, the boll weevil pheromone