The reaction of secondary phosphines and di-1-adamantylphosphine oxide with trifluoroacetic anhydride and hexafluoroacetone
作者:Jens R. Goerlich、Volker Plack、Reinhard Schmutzler
DOI:10.1016/0022-1139(95)03288-6
日期:1996.1
reacted readily with trifluoroacetic anhydride (TFAA) to give the trifluoroacetylphosphines 7 and 8. (1-Ad)2P(:O)H (6) could not be converted into the corresponding trifluoroacetylphosphine oxide 10 by treatment with TFAA. Compound 10 was observed by 19F and 31P NMR spectroscopy in the reaction of (1-Ad)2PC(:O)CF3(7) with (H2N)2C(:O) · H2O2. Two pathways were observed for the reaction of 1 with excess
仲膦(1-Ad)2 PH(1)(1-Ad =金刚烷基)和Trt(Ph)PH (2)(Trt =三苯甲基)与三氟乙酸酐(TFAA)容易反应生成三氟乙酰基膦7和8。(1-Ad)2 P(:O)H (6)无法通过TFAA处理转化为相应的三氟乙酰基膦氧化物10。在(1-Ad)2 PC(:O)CF 3 (7)与(H 2 N)2 C(:O)·H 2的反应中,通过19 F和31 P NMR光谱观察到化合物10。O 2。从一级HFA加合物(1-Ad)2 PC(CF 3)2 OH (13)开始,观察到1与过量六氟丙酮(HFA)反应的两个途径。13的氧化导致叔膦氧化物14,其也可从(1-Ad)2 P(:O)H (6)和HFA获得。13的异构化得到(1-Ad)2 POCH(CF 3)2(15),其用过量的HFA氧化提供了磷烷16。水解16生成次膦酸酯17。如对于Ph 2 PH (3)已知的,Ph(C 6 F 5)PH