A convenient and efficient synthesis of 2-thio-5-hydroxy-5H-[1]benzopyrano[4,3-d] pyrimidines via ultrasonic irradiation compared with conventional method

Autor:	Namdeo T. Dhokale, Satish B. Kale, Sadashiv S. Nagre, Shankaraiah G. Konda, Navanath R. Dalvi
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Synthesis Efficient Ultrasonic irradiation 3-Formylchromone Conventional heating Chemistry QD1-999
Zdroj:	Current Research in Green and Sustainable Chemistry, Vol 5, Iss , Pp 100282- (2022)
Druh dokumentu:	article
ISSN:	2666-0865 42933617
DOI:	10.1016/j.crgsc.2022.100282
Popis:	We report an easy and powerful approach to the synthesis of 2-thio-5-hydroxy-5H-[1]benzopyrano[4,3-d] pyrimidines derivatives by condensation of 3-Formylchromone and thiourea under conventional heating and ultrasonic irradiation. The ultrasonic irradiation is convenient and efficient method as compared to conventional heating in alcoholic KOH. This method affords the desired product with good to excellent yields. The IR, 1H NMR and mass spectroscopy were obtained for selected synthesized products.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/c36f0a13b21f4f42933617dc145c2ea5 Zobrazit plný text záznamu View record in DOAJ