Substitution- and Elimination-Free Phosphorylation of Functionalized Alcohols Catalyzed by Oxidomolybdenum Tetrachloride
作者:Cheng-Yuan Liu、Vijay D. Pawar、Jun-Qi Kao、Chien-Tien Chen
DOI:10.1002/adsc.200900279
日期:2010.1.4
the tested alcohols, oxidomolybdenum tetrachloride (MoOCl4) was found to be the most efficient with a negligible background reaction mediated by triethylamine (Et3N). The new catalytic protocol can be applied to the chemoselective phosphorylations of primary, secondary and tertiary alcohols as well as the substitution‐free phosphorylations of allylic, propargylic, and benzylic alcohols. Functionalized
Copper catalyzed synthesis of aryl/alkyl mixed phosphates from diphenylphosphoryl azides and aliphatic alcohols under mild conditions
作者:Lin-Yu Jiao、Ze Zhang、Xiao-Mei Yin、Zhuo Li、Xiao-Xun Ma
DOI:10.1016/j.jcat.2019.09.014
日期:2019.11
efficient and convenient one-pot protocol is developed to prepare aryl/alkyl mixed phosphates in the presence of coppercatalyst under exceptionally mild conditions. A series of versatile, ubiquitous, and inexpensive phosphoryl azides and aliphatic alcohols are combined for the first time ever. Diphenylphosphoryl azide is employed as novel phosphors reagent through an unexpected cleavage of PN bond. The
Design, synthesis, application and recovery of a minimally fluorous diaryl diselenide for the catalysis of stannane-mediated radical chain reactions
作者:David Crich、Xiaolin Hao、Mathew Lucas
DOI:10.1016/s0040-4020(99)00902-3
日期:1999.12
diselenide is described. On reduction in situ with tributylstannane this diselenide provides a fluorous selenol which is effective in inhibiting a range of stannane-mediated radicalrearrangements, including a cyclopropylcarbinyl ring opening. A method for the recovery of the fluorous diselenide involving continuous extraction in a modified, cooled continuous extractor is described.
AN EFFICIENT PHOSPHORYLATION METHOD BY THE ACTIVATION OF ALCOHOL
作者:Yutaka Watanabe、Teruaki Mukaiyama
DOI:10.1246/cl.1978.349
日期:1978.4.5
The reaction of 2-alkyloxybenzoxazoles with diphenyl hydrogen phosphate proceeds smoothly to give the corresponding alkyl diphenyl phosphates in good yields. 2-Alkyloxybenzoxazoles can be readily prepared by treating the parent alcohols with 2-fluorobenzoxazole derived from 2-chlorobenzoxazole by the action of potassium fluoride.