Water Extract of Lemon (WEL) as a Promoter: Green and Regioselective Synthesis of Alkyl‐4‐(1H‐indol‐3 yl)‐2‐alkyl‐4H‐chromene‐3‐carboxylates Using 4H‐chromenes and Indoles.

Autor:	Vasantha R., Lenin, Dandamudi V, Rao, L. Chandrashekhara, Satish Kumar, Nandigama
Předmět:	INDOLE LEMON CATALYST supports EXTRACTS CATALYSTS WATER
Zdroj:	ChemistrySelect; 11/30/2020, Vol. 5 Issue 44, p14004-14007, 4p
Abstrakt:	An efficient, simple, green, regioselective and catalyst‐free synthesis of alkyl‐4‐(1H‐indol‐3yl)‐2‐alkyl‐4H‐chromene‐3‐carboxylates is disclosed by employing indoles and substituted chromene derivatives under mild reaction condition. This is a novel green methodology, simple, eco‐friendly and easy to operate. Biomass‐derived catalyst Water Extract of Lemon (WEL) was used as a promoter for this procedure. The methodology could be applicable for cost‐effective large scale production of alkyl‐4‐(1H‐indol‐3yl)‐2‐alkyl‐4H‐chromene‐3‐carboxylates in good to excellent yield. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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