(Nitroethenyl)salicylic Acid Anilides and Related Substances, a New Group of Molluscicidal and Microbicidal Compounds
作者:Nazih Latif、Nabih S. Girgis、Fahmy M. Assad、Nabil Grant
DOI:10.1002/jlac.198519850610
日期:1985.6.12
5-(2-Nitroethenyl)salicyloyl chloride (2b) condenses with anilines affording the anilides 3a–h. The compound 3a reacts with isocyanates to give the corresponding carbamates 5a–c, whereas at higher temperatures the anilide 3a as well as the acid 2a give the same benzoxazinedione 4a which affords 5-formyl-N-methylsalicylamide (6) upon treatment with alkali. 3a and 3d react with thionyl chloride to give