Methyl 3-bromomethyl-3-butenoate as an isopentane building block for the stereoselective preparation of (S)-4-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde and (+)-faranal
摘要:
(S)-4-Methyl-3,6-dihydro-2H-pyran-2-carbaldehyde (3), the common intermediate in the syntheses of the C17-C27 subunit of laulimalide (4) and (+)-faranal (5), the trail pheromone of the pharaoh ant, Monomorium pharaonis, were obtained via transformation of methyl 3-bromomethyl-3-butenoate (1) into allylstannane 2 and subsequent allylation of (benzyloxy)acetaldehyde (6) in accordance with the Keck procedure as the key steps. (C) 2010 Elsevier Ltd. All rights reserved.
Cyclopropane intermediates in the synthesis of chiral alcohols with methyl-branched carbon skeleton. Application in the synthesis of insect pheromones
作者:V. N. Kovalenko、I. V. Mineeva
DOI:10.1134/s1070428014070033
日期:2014.7
Methyl 3-bromomethyl-3-butenoate as an isopentane building block for the stereoselective preparation of (S)-4-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde and (+)-faranal
作者:Iryna V. Mineyeva、Oleg G. Kulinkovich
DOI:10.1016/j.tetlet.2010.01.120
日期:2010.4
(S)-4-Methyl-3,6-dihydro-2H-pyran-2-carbaldehyde (3), the common intermediate in the syntheses of the C17-C27 subunit of laulimalide (4) and (+)-faranal (5), the trail pheromone of the pharaoh ant, Monomorium pharaonis, were obtained via transformation of methyl 3-bromomethyl-3-butenoate (1) into allylstannane 2 and subsequent allylation of (benzyloxy)acetaldehyde (6) in accordance with the Keck procedure as the key steps. (C) 2010 Elsevier Ltd. All rights reserved.
α,β-Unsaturated β-Methyl-δ-lactones in Nitrile Oxide Cycloaddition Reactions. Synthesis of Saturated Lactones and Lactams
作者:I. V. Mineyeva
DOI:10.1134/s1070428022060033
日期:2022.6
Abstract New isoxazoline derivatives have been synthesized in high yields by cycloaddition of acetonitrile oxide to α,β-unsaturated β-methyl-δ-lactones. These unsaturated lactones have been used to obtain β-methyl branched saturated lactones and lactams, as well as lactones with an inversed configuration of hydroxy group, following the divergent approach.