Ethyl α-(diethylphosphono)acrylate (1a) and α-(diethylphosphono)acrylonitrile (1b) prepared by thermolysis of ethyl 2-diethylphosphono-2-phenylsulfinylpropionate (2a) and 2-diethylphosphono-2-phenylsulfinylpropionitrile (2b) react with various nucleophiles to generate corresponding phosphonate anions, which subsequently react with carbonyl compounds to give annelated or acyclic olefinic compounds in
                                    α-(
二乙基膦酰基)
丙烯酸乙酯(1a)和α-(
二乙基膦酰基)
丙烯腈(1b)由2-
二乙基膦酰基-2-苯基亚磺酰基
丙酸乙酯(2a)和2-
二乙基膦酰基-2-苯基亚磺酰基
丙腈(2b)与各种亲核试剂反应制备而成生成相应的
膦酸阴离子,随后与羰基化合物反应,以良好的收率得到退火或无环烯烃化合物。