Ketones in the catalytic three-component “one-pot” Kabachnik-Fields synthesis of α-amino phosphonates
作者:E. D. Matveeva、T. A. Podrugina、M. V. Prisyajnoy、N. S. Zefirov
DOI:10.1007/s11172-006-0400-2
日期:2006.7
Reactions of carbocyclic, heterocyclic, and steroidal ketones with benzylamine and diethyl phosphite in a catalytic three-component “one-pot” synthesis of α-amino phosphonates were studied. The activities of mono-and binuclear complexes of tetra(tert-butyl)phthalocyanines as catalysts for this process were compared.
Highly Selective 1,4- and 1,6-Addition of P(O)H Compounds to<i>p</i>-Quinones: A Divergent Method for the Synthesis of<i>C</i>- and<i>O</i>-Phosphoryl Hydroquinone Derivatives
作者:Biquan Xiong、Ruwei Shen、Midori Goto、Shuang-Feng Yin、Li-Biao Han
DOI:10.1002/chem.201202074
日期:2012.12.21
functionality. Further studies on these reactions by using opticallyactiveH‐phosphinates showed that all addition reactions took place stereospecifically with retention of configuration at the phosphorus center. The findings lead to the establishment of a divergent method for the synthesis of C‐ and O‐phosphoryl hydroquinone derivatives from easily available P(O)H compounds.
appropriate reaction conditions, the phosphorylation of hydroquinone by diethyl chlorophosphate gave predominantly the monophosphate (2). A similar reaction of phloroglucinol led to the mixture of the possible products (6, 7, and 8). The monophosphinylation of the above hydroxyphenols by diphenylphosphinyl chloride could be accomplished with a good selectivity to give product 4 or 9, the yields, however