Heteropoly Acids an Efficient Catalyst for Ultrasound Promoted Synthesis of Substituted Indazole

Autor:	Suryawanshi, Manohar D., Suryawanshi, Ganesh D., Lawande, Shamrao P.
Rok vydání:	2022
Předmět:	Polymers and Plastics Organic Chemistry Materials Chemistry
Zdroj:	Polycyclic Aromatic Compounds. :1-8
ISSN:	1563-5333 1040-6638
DOI:	10.1080/10406638.2022.2083197
Popis:	A clean and simple methodology was developed for the synthesis of substituted indazoles using heteropoly acids containing tungsten, molybdenum metal catalyzed condensation reaction between substituted 2-hydroxy benzaldehydes/acetophenones and hydrazine hydrate/phenyl hydrazine. The reaction conditions are optimized for two different heteropoly acids such as H3PMo12O40 and H3PW12O40 using conventional and ultrasound sonication method. Yield of the products improved to 92 to 95% using H3PW12O40 heteropoly acid as catalyst which is reusable, cost effective and easy to handle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0a193bbd26f7eea595481e82bf7d2f8 https://doi.org/10.1080/10406638.2022.2083197 Zobrazit plný text záznamu