Mild Method for the Selective Esterification of Carboxylic Acids Based on the Garegg−Samuelsson Reaction
摘要:
A mild method for the selective esterification of primary alcohols is described. The use of different phosphines, I-2, and imidazole allows the selective esterification: of a wide variety of acids with excellent results. The generation of a bulky phosphonitun-carboxylate salt as intermediate could justify the selectivity observed in this process. Additionally, amides also can be synthesized with use of this method.
The present invention relates to ketone derivatives represented by the following formula and medical agents cotaining the ketone derivatives or pharmacologically acceptable salts thereof as an active ingredient, and in particular, relates to a hematopoietic agent; it is shown that the present invention increases blood cells, such as platelets, white blood cells, and red blood cells, and is effective in preventing and treating cytopenia caused by cancer chemotherapy, radiation therapy, and the like.
Bohlmann,F. et al., Chemische Berichte, 1967, vol. 100, p. 3706 - 3715
作者:Bohlmann,F. et al.
DOI:——
日期:——
US6215016B1
申请人:——
公开号:US6215016B1
公开(公告)日:2001-04-10
Mild Method for the Selective Esterification of Carboxylic Acids Based on the Garegg−Samuelsson Reaction
作者:Sara P. Morcillo、Luis Álvarez de Cienfuegos、Antonio J. Mota、José Justicia、Rafael Robles
DOI:10.1021/jo102395c
日期:2011.4.1
A mild method for the selective esterification of primary alcohols is described. The use of different phosphines, I-2, and imidazole allows the selective esterification: of a wide variety of acids with excellent results. The generation of a bulky phosphonitun-carboxylate salt as intermediate could justify the selectivity observed in this process. Additionally, amides also can be synthesized with use of this method.