Alkylation of sterically hindered 1,3-diketones under phase-transfer conditions
摘要:
Sterically hindered 1,3-diketones react selectively with propargyl and allyl bromides under conditions of phase transfer catalysis to give C-alkylated products, whereas reactions with butyl and benzyl chlorides yield mixtures of C- and O-isomers. Gn increase in the size of the substituents present in the initial 1,3-diketone hampers introduction of the second propargyl group. The propargyl-substituted 1,3-diketones undergo cyclization under the alkylation conditions to give substituted furans.
Metal Complex Compound Comprising B-Diketonato Ligand
申请人:Kadota Takumi
公开号:US20080254216A1
公开(公告)日:2008-10-16
[PROBLEMS] To provide a metal complex compound capable of being suitably used for manufacturing a metal-containing thin film by the CVD method and a method for preparing a metal-containing thin film.
[MEANS FOR SOLVING PROBLEMS] A metal complex compound comprising a β-diketonato ligand having an alkoxyalkyl-methyl group, and a method for preparing a metal-containing thin film using the metal complex compound by the CVD method.
Sterically hindered 1,3-diketones in the Michael reaction
作者:I. E. Sokolov、A. S. Zanina、S. I. Shergina、M. S. Shvartsberg
DOI:10.1007/bf01433748
日期:1996.1
The base catalyzed addition of sterically hindered 1,3-diketones to the activated multiple bond of ethyl acrylate and 4-methyl-4-methoxy-1-phenylpent-2-yne-1-one has been studied. The addition of methyl(2-propenyl)ketone is partially accompanied by intramolecular cyclization of the resulting adduct.
Nichiporuk, R. V.; Pechurova, N. I.; Snezhko, N. I., Russian Journal of Inorganic Chemistry, 1991, vol. 36, p. 1285 - 1288
作者:Nichiporuk, R. V.、Pechurova, N. I.、Snezhko, N. I.、Martynenko, L. I.、Kaul', A. R.、et al.
DOI:——
日期:——
Kandybin; Belaya; Malkova, Russian Journal of General Chemistry, 1999, vol. 69, # 6, p. 866 - 875