Indium mediated Barbier reactions of 1,2-diones: a facile synthesis of α-hydroxy ketones
作者:Vijay Nair、C.N Jayan
DOI:10.1016/s0040-4039(99)02237-6
日期:2000.2
Indium mediated allylation and cinnamylation of 1,2-diones with the corresponding bromides in the presence of sodium iodide produce α-carbonyl homoallylic alcohols in excellent yields.
Photo-allylation and photo-benzylation of carbonyl compounds using organotrifluoroborate reagents
作者:Yutaka Nishigaichi、Takayuki Orimi、Akio Takuwa
DOI:10.1016/j.jorganchem.2009.08.011
日期:2009.11
Allyl- and benzyl-trifluoroborates can be applied to the photoreaction of carbonylcompounds to afford the corresponding alcoholic adducts in acceptable yields via a photo-induced single electron transfer pathway. The results were confirmed from the reaction selectivity and the negative free energy change for the electron transfer process.
Hypervalency (pentacoordination) of silicon atom enhanced photoallylation of 1,2-diketones with allylsilicon reagents, while normal tetracoordinated ones could not. This reaction seems to proceed via photoinduced electron transfer from the silicon reagent to the photoexcited ketone judged from its reactivity and selectivity. (c) 2005 Elsevier Ltd. All rights reserved.
Novel reactions of indium reagents with 1,2-diones: a facile synthesis of α-hydroxy ketones
作者:Vijay Nair、C.N Jayan、Sindu Ros
DOI:10.1016/s0040-4020(01)00937-1
日期:2001.11
Indium mediated reactions of allyl, cinnamyl, propargyl and benzyl bromides, ethyl bromoacetate and ethyl-4-bromocrotonate with 1,2-diones, in the presence of sodium iodide, occur efficiently to afford α-hydroxy keto compounds in excellent yields.