A Novel Synthesis of Phosphonates from Diethyl (Trichloromethyl)phosphonate
摘要:
Commercially available diethyl (1,1,1-trichloromethyl)phosphonate was reacted with aldehydes and ketones to generate (chlorovinyl)phosphonates in a single step. These intermediates could be hydrogenated in high yields to the corresponding saturated phosphonates.
Lowen Gregory T., Almond Merrick R., J. Org. Chem, 59 (1994) N 16, S 4548-4550
作者:Lowen Gregory T., Almond Merrick R.
DOI:——
日期:——
A Novel Synthesis of Phosphonates from Diethyl (Trichloromethyl)phosphonate
作者:Gregory T. Lowen、Merrick R. Almond
DOI:10.1021/jo00095a033
日期:1994.8
Commercially available diethyl (1,1,1-trichloromethyl)phosphonate was reacted with aldehydes and ketones to generate (chlorovinyl)phosphonates in a single step. These intermediates could be hydrogenated in high yields to the corresponding saturated phosphonates.
One-pot stereoselective synthesis of (Z)-diethyl α-chlorovinylphosphonates
作者:Wieslawa Perlikowska、Malose J. Mphahlele、Tomasz A. Modro
DOI:10.1039/a606713a
日期:——
Diethyl trichloromethylphosphonate, treated with BuLi
followed by an aldehyde (or cycloalkenone), was converted to
α-chlorovinylphosphonates via the intermediate
formation of a bisphosphonate and a WadsworthâEmmons
olefination. High (Z) stereoselectivity of the reaction is
discussed in terms of the conformational preferences of the
adducts.