Preparation of Dialkyl (2,2,2-Trifluoroethyl)phosphonates by Cu-Promoted Reactions of 1,1-Dichloro-2,2,2-trifluoroethane with HP(O)(OR)<sub>2</sub>
作者:Jun Luo、En-Jian Han、Qian Shen、Meiwei Huang、Yan-Gen Huang、Hui-min Liu、Wei Wang、Qing-Yun Chen、Yong Guo
DOI:10.1021/acs.oprd.6b00312
日期:2016.11.18
Cu-promoted reactions of 1,1-dichloro-2,2,2-trifluoroethane (HCFC-123) with dialkyl phosphonates produced dialkyl (2,2,2-trifluoroethyl)phosphonates efficiently under mild conditions by successively activating the two inert C–Cl bonds in HCFC-123. These reactions can be efficiently carried out on a >30 g scale with moderate to good yields.
铜促进的1,1-二氯-2,2,2-三氟乙烷(HCFC-123)与膦酸二烷基酯的反应,在温和的条件下,通过依次活化两个惰性C-,可有效地产生二烷基(2,2,2-三氟乙基)膦酸酯。 HCFC-123中的Cl键。这些反应可以在> 30 g规模上以中等到良好的收率有效地进行。