Abstract

AbstractAlkylation of 5‐nitroindazole (I) with dimethyl sulphate and/or diethyl sulphate in presence of sodium hydroxide yields mixtures containing more 2‐alkylated than 1‐alkylated products. The action of diazomethane on 5‐nitro (I) and 6‐nitro‐indazole (IV) was investigated. Reduction of nitroindazoles with hydrogen on Pd/charcoal proceeds smoothly. The synthesis of several new benzimidazole and indazole dye intermediates is also described.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.