Fluoride-catalyzed three-component coupling reaction of a silylphosphine, activated alkenes and aldehydes
作者:Minoru Hayashi、Yutaka Matsuura、Yutaka Watanabe
DOI:10.1016/j.tetlet.2005.05.128
日期:2005.8
A novel CsF-catalyzed three-componentcouplingreaction of a silylphosphine, activatedalkenes and aldehydes is described. Multi-functional phosphines were obtained by forming both carbon–phosphorus and carbon–carbon bonds in good yields under mild conditions.
Reactions of primary and secondary phosphines with aldehydes and ketones
作者:M. Epstein、S.A. Buckler
DOI:10.1016/0040-4020(62)80004-0
日期:1962.1
The reactions of primary and secondary phosphines with aldehydes and ketones have been studied with particular emphasis on the effects of substituents on phosphorus, and reaction conditions. Oxygen transfer reactions are observed with both primary and secondary phosphines thus providing a new route to secondary and tertiary phosphineoxides. The scope of these reactions has been defined in terms of
Three-Component Direct Phosphorylation of Aldehydes and Alkylation of Ketones: Synthesis of γ-Ketophosphine Oxides under Acidic Conditions
作者:Xiao-Hong Wang、Ya-Wen Xue、Chun-Yuan Bai、Yan-Bin Wang、Xiao-Hong Wei、Qiong Su
DOI:10.1021/acs.joc.3c01674
日期:2023.12.1
and C–C bonds for the synthesis of γ-ketophosphine oxides with water as the only byproduct was developed. Detailed mechanistic experiments confirmed that the reaction proceeds by phospha-aldol elimination, in which a benzylic carbocation is generated from the phosphorylation of aldehydes, which then reacts with ketone enolates underacidicconditions.
Synthesis of monohydroxy -methyl- and -ethyl-phosphines PPh2CHROH
作者:Guillermo Muller、Daniel Sainz
DOI:10.1016/0022-328x(95)05425-o
日期:1995.6
The preparation of alpha-hydroxyphosphines PPh(2)CHROH with R = H (a), Ph (b) and Et (c), and beta-hydroxyphosphines PPh(2)CHR'HROH (e-i) has been achieved in high yield by reaction of HPPh(2) or LiPPh(2) with RCHO or the oxides of cyclohexene (e), limonene (f), styrene (g, h) and pinene (i). With the exception of styrene oxide, the reactions with the oxides are very regioselective, giving only one of the possible isomers. Cis- and trans-limonene oxides react with LiPPh(2) in different conditions selectively, giving trans-phosphino derivatives from commercial mixtures of limonene oxide.