Process for producing isochromanones and intermediates thereof
申请人:Showa Denko K.K.
公开号:US06372921B1
公开(公告)日:2002-04-16
(1) Methods for producing isochromanone compounds from o-xylene compounds as starting compounds through &agr;-halogeno-o-xylene derivatives, &agr;-cyano-o-xylene derivatives, and &agr;-halogeno-&agr;′-cyano-o-xylene derivatives, and (2) methods for producing isochromanone compounds from o-xylene compounds as starting compounds through &agr;,&agr;′-dihalogeno-o-xylene derivatives, &agr;,&agr;′-dihydroxy-o-xylene derivatives, &agr;-halogeno-&agr;′-hydroxy-o-xylene derivatives and &agr;-cyano-&agr;′-hydroxy-o-xylene derivatives, and methods for producing these intermediate compounds.
作者:Brian S. Backer、Cindy J. Choy、Austen L. Davis、Zachery S. Browne、Clifford E. Berkman
DOI:10.1016/j.tetlet.2020.151650
日期:2020.3
We previously described a pH-sensitive phosphoramidate linker scaffold that can be tuned to release amine-containing drugs at various pH values. In these previous studies it was determined that the tunability of this linker was dependent upon the proximity of an acidic group (e.g., carboxylic acid or pyridinium). In this study, we confirmed that the tunability of pH-triggered amine-release was also
There is disclosed an efficient process for producing .alpha.-ketoacetamide of the formula: ##STR1## which is useful as an intermediate for the production of various alkoxyiminoacetamide compounds to be used for agricultural fungicides. In this process, a corresponding acid halide is condensed with isocyanide to produce the .alpha.-ketoacetamide.
Process for producing .alpha.-ketoamide derivative
申请人:Shionogi & Co., Ltd.
公开号:US05258551A1
公开(公告)日:1993-11-02
There is disclosed an efficient process for producing .alpha.-ketoacetamide of the formula: ##STR1## which is useful as an intermediate for the production of various alkoxyiminoacetamide compounds to be used for agricultural fungicides. In this process, a corresponding acid halide is condensed with isocyanide to produced the .alpha.-ketoacetamide.