ChemInform Abstract: Solvent-Free Synthesis of Naphthopyrans under Ball-Milling Conditions

Autor:	Lei Wang, Guan-Wu Wang, Ya-Wei Dong
Rok vydání:	2009
Předmět:	Indium Trichloride chemistry.chemical_compound Solvent free Tetrahydrate Nucleophilic addition chemistry Polymer chemistry General Medicine Ball mill Catalysis
Zdroj:	ChemInform. 40
ISSN:	1522-2667 0931-7597
Popis:	Under solvent-free ball-milling conditions, the nucleophilic addition reactions of terminal alkynes to carbonyl compounds promoted by KOH proceeded efficiently at ambient temperature. Subsequent cyclization reactions of the synthesized propargylic alcohols with 2-naphthol catalyzed by indium trichloride tetrahydrate, leading to the formation of naphthopyrans, were then investigated. In most cases, side reactions were avoided and thus high yields were achieved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::094610f450f8a35217bf1729254b8014 https://doi.org/10.1002/chin.200911144 Zobrazit plný text záznamu Plný text