β-Allenic α-difluoromethylenephosphonic acid monoesters were prepared under mild conditions for the first time by hydrolyzing the corresponding diethyl phosphonates in aqueous sodium hydroxide solution.
The sulfinatodehalogenation reaction of α,α-difluorobenzyl handes, ArCF_2X (Ar = CAFS, C_6H_5; X = Br, I ), with sodium dithionite took place readily in aqueous acetonitrile under mild conditions. giving the corresp...The sulfinatodehalogenation reaction of α,α-difluorobenzyl handes, ArCF_2X (Ar = CAFS, C_6H_5; X = Br, I ), with sodium dithionite took place readily in aqueous acetonitrile under mild conditions. giving the corresponding sodium sulfinate. The 1: 1 adducts were obtained when alkenes were added to the reaction system in some cases.展开更多
Perfluoroalkylbenzo crown ethers were readily prepared from the reaction of benzo crown ethers with sodium perfluoroalkanesulfinates in the presence of an oxidizing agent such as Ce(SO_4)_2 or Mn(OAC)_3.2H_2O in good ...Perfluoroalkylbenzo crown ethers were readily prepared from the reaction of benzo crown ethers with sodium perfluoroalkanesulfinates in the presence of an oxidizing agent such as Ce(SO_4)_2 or Mn(OAC)_3.2H_2O in good yields through a radical process.展开更多
基金We thank the National Natural Science Foundation of China for financial support(No.20572124).
文摘β-Allenic α-difluoromethylenephosphonic acid monoesters were prepared under mild conditions for the first time by hydrolyzing the corresponding diethyl phosphonates in aqueous sodium hydroxide solution.
基金the National Natural Science Foundation of China ! 29772041.29632003
文摘The sulfinatodehalogenation reaction of α,α-difluorobenzyl handes, ArCF_2X (Ar = CAFS, C_6H_5; X = Br, I ), with sodium dithionite took place readily in aqueous acetonitrile under mild conditions. giving the corresponding sodium sulfinate. The 1: 1 adducts were obtained when alkenes were added to the reaction system in some cases.
文摘Perfluoroalkylbenzo crown ethers were readily prepared from the reaction of benzo crown ethers with sodium perfluoroalkanesulfinates in the presence of an oxidizing agent such as Ce(SO_4)_2 or Mn(OAC)_3.2H_2O in good yields through a radical process.
