THE FORMATION OF α-AMINO AND α-HYDROXY-ALKANEPHOSPHONIC ACIDS IN THE REACTIONS OF PHOSPHITE ESTERS WITH ALDEHYDES AND ALKYL CARBAMATES
作者:Harry R. Hudson、Fatima Ismail、Max Pianka、Chi-Wai Wan
DOI:10.1080/10426500008045250
日期:2000.1
Abstract The preparation of α-aminoalkanephosphonic acids from triphenyl phosphite, an aldehyde, and ethyl or benzyl carbamate in glacial acetic acid, followed by hydrolysis, is accompanied by the formation of the corresponding α-hydroxyphosphonic acid. Reaction in toluene, using boron trifluoride-etherate as catalyst, affords an alternative reparative procedure but does not prevent the formation of
摘要 由亚磷酸三苯酯、醛和氨基甲酸乙酯或苄酯在冰醋酸中制备α-氨基烷烃膦酸,然后水解,同时生成相应的α-羟基膦酸。在甲苯中反应,使用三氟化硼醚合物作为催化剂,提供了另一种修复程序,但不能阻止 α-羟基膦酸的形成。31P nmr 揭示了许多中间体的存在。讨论了反应。