Efficient Synthesis of 2-Methylene-3phosphorylalkanoates: Phosphorylation of Baylis–Hillman Bromides via an S<sub> <i>N</i> </sub>2-S<sub> <i>N</i> </sub>2′ Strategy
作者:Liancheng Yang、Longhe Xu、Chunrui Yu
DOI:10.1080/10426500802418545
日期:2009.8.6
A novel synthesis of 2-methylene-3-phosphorylalkanoates under mild conditions is described. Thus, Balyis-Hillman bromides react with secondary phosphine oxides or H-phosphonites in the presence of DABCO via an S(N)2-S(N)2' protocol to produce the target compounds in good yields.
Facile synthesis of bisphosphine monoxides from Morita–Baylis–Hillman carbonates
作者:Rong Zhou、Kai Zhang、Rongfang Liu
DOI:10.1080/10426507.2015.1100192
日期:2016.6.2
GRAPHICAL ABSTRACT ABSTRACT A facile two-step synthesis of bisphosphine monoxides (BPMOs, with both the phosphine and phosphine oxide moieties within one molecule) from readily available Morita–Baylis–Hillman (MBH) carbonates was realized. Under the catalysis of DABCO, the MBH carbonates undergo allylic phosphorylation reaction with diphenylphosphine oxide or diethyl phosphonate to give monophosphine