Synthesis of aliphatic insect pheromones from alicyclic starting materials
作者:K. Mori、M. Uchida、M. Matsui
DOI:10.1016/0040-4020(77)80091-4
日期:1977.1
Both (Z)-6-heneicosen-11-one, the pheromone of Douglas fir tussock moth, and (Z)-8-dodecenyl acetate, the pheromone of oriental fruit moth, have been synthesized from cyclohexane-1,3-dione.
Preparation and reaction of new dialkylzincs obtained by a boron-zinc transmetalation.
作者:Falk Langer、Jack Waas、Paul Knochel
DOI:10.1016/s0040-4039(00)73968-2
日期:1993.8
Various aliphatic organoboron derivatives were transmetalated to the corresponding dialkylzincs using diethyl- or dimethyl-zinc. This allows an access to zinc reagents not readily available by standard methods. Didecylzinc obtained by this method adds with good enantioselectivity (83 % ee) to PhCHO in the presence of catalytic amounts of (1R, 2R)-1,2-bis-(trifluorosulfonamido)cyclohexane.
A Versatile One-pot Procedure for the Insertion of a 3-Substituent into 2-Cycloalkenones
作者:A Katritzky
DOI:10.1016/00404-0399(50)10802-
日期:1995.7.31
Synthesis and Antinematodal Activity of 3-<i>n</i>-Alkylphenols
Several 3-alkylphenols including 3-undecylphenol, which was isolated from a Sumatran rainforest plant, were synthesized to investigate their antinematodal activity against the phytopathogenic nematodes, Bursapherencus xylophilus. A three-step synthesis involving the treatment of 2-cyclohexen-1-one with the Grignard reagent, oxidation of the resulting 1-alkyl-2-cyclohexen-1-ol and subsequent aromatization of 3-alkyl-2-cyclohexen-1-one successfully afforded such phenols. Among the 3-alkylphenols, 3-nonylphenol showed the highest activity, while 3-decylphenol and 3-undecylphenol also showed high activity.