We describe efficient and flexible enantioselective syntheses of the active enantiomers of the pheromones of pine sawflies, including the species Diprion jingyuanensis, their homologs and, stereoisomers, as well as those identified from the Chinese species Diprion jingyuanensis, i.e., 126. A total of 48 compounds, including acetates 78–101 and propanoates 102–125, have been synthesized. Our general
Transformation of esters into allyl halides via substituted cyclopropanols. Application in the synthesis of (2S,3R,7R/S)-3,7-dimethyltridec-2-yl acetate and propionate, sex attractants of pine sawfly Diprion pini
作者:Andrey V. Bekish、Konstantin N. Prokhorevich、Oleg G. Kulinkovich
DOI:10.1016/j.tetlet.2004.05.022
日期:2004.6
A convenient new approach to the synthesis of the acetate and the propionate of (2S,3R,7R/S)-3,7-dimethyltridecan-2-ol, sex attractants of Diprion pini L., using the cyclopropanation of the ethoxycarbonyl group in O-THP protected ethyl (S)-lactate with ethylmagnesium bromide in the presence of titanium(IV) isopropoxide followed by C-2–C-3 cyclopropane ring opening as the key steps has been performed
一种方便的新方法,用于合成Diprion pini L.的性引诱剂(2 S,3 R,7 R / S)-3,7-二甲基三苯甲基-2-醇的乙酸酯和丙酸酯,在异丙醇钛(IV)存在下,O- THP用乙基溴化镁保护的O- THP保护的乳酸(S)-乳酸乙酯中的乙氧基羰基,随后进行了C-2-C-3环丙烷开环的关键步骤。
Zirconium-catalyzed reaction of terminal alkenes with triethylindium
作者:I. R. Ramazanov、L. K. Dil’mukhametova、U. M. Dzhemilev
DOI:10.1134/s1070428013090017
日期:2013.9
Terminal alkenes (undec-1-ene, oct-1-ene, and allylbenzene) reacted with triethylindium in the presence of a catalytic amount of Cp2ZrCl2 in hexane to give mixtures of three organoindium compounds whose hydrolysis in D2O afforded 2-substituted 1,4-dideuterobutane containing minor amounts of 2-substituted 1- and 4-deuterobutanes.
Genard, S.; Patin, H., Bulletin de la Societe Chimique de France, 1991, # 3, p. 397 - 406
作者:Genard, S.、Patin, H.
DOI:——
日期:——
BRANCHED-CHAIN FATTY ACIDS. XIII. PREPARATION OF BRANCHED AND NORMAL ACIDS FOR USE IN THE STUDY OF MELTING POINTS OF BINARY MIXTURES. COMPLETION OF THE METHYLOCTADECANOIC ACID SERIES