Oxazoline compounds and herbicides containing the same
申请人:SDS Biotech Kabushiki Kaisha
公开号:US04973351A1
公开(公告)日:1990-11-27
Disclosed herein are 4-phenylamino-3-oxazolin-5-one compounds and herbicides comprising as an essential effective ingredient 4-phenylamino-3-oxazolin-5-one compounds.
Design, Synthesis, and Antibacterial Activity of 1-{8-[(Het)arylmethoxy]-2-(trifluoromethyl)imidazo[1,2-a]pyrazin-6-yl}ethan-1-amine Derivatives
作者:B. Siva Reddy、K. R. S. Prasad
DOI:10.1134/s1070428022070119
日期:2022.7
produced tert-butyl N-(4-diazo-3-oxobutan-2-yl)carbamate (5) which was converted to tert-butyl N-(4-bromo-3-oxobutan-2-yl)carbamate (6) via reaction with 48% hydrogenbromide. Compound 3 was reacted with 6 to give 1-3-[(tert-butoxycarbonyl)amino]-2-oxobutyl}-4-(trifluoromethyl)-1H-imidazole-2-carboxylic acid (7). Cyclization of the latter with ammonium hydrogen carbonate gave tert-butyl N-1-[8-oxo-2-(trifluoromethyl)-7