ChemInform Abstract: One-Pot Synthesis of Benzo[b]thiophenes and Benzo[b]selenophenes from o-Halo-Substituted Ethynylbenzenes: Convenient Approach to Mono-, Bis-, and Tris-Chalcogenophene-Annulated Benzenes

Autor:	Hirokazu Kuwabara, Masahiro Kohara, Shoji Shinamura, Eigo Miyazaki, Masaaki Ikeda, Tomoya Kashiki, Kazuo Takimiya
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Tris chemistry.chemical_compound chemistry Acetylene One-pot synthesis Substituent General Medicine Medicinal chemistry Thiophene derivatives Alkyl
Zdroj:	ChemInform. 40
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.200943114
Popis:	A convenient one-pot procedure for the synthesis of benzo[b]thiophenes and selenophenes from readily available o-halo-ethynylbenzene precursors is described. Regardless of the substituent on the acetylene terminus or the number of cyclization moieties on the precursors, various benzo[b]thiophenes and selenophenes, including not only the parent, alkyl-, and phenyl-substituted derivatives but also benzo[1,2-b:4,5-b']dithiophenes and diselenophenes and benzo[1,2-b:3,4-b':5,6-b'']trithiophenes and triselenophenes can be prepared in good to high yields.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9b9250c1f1c6006b159eacea7aa7b24e https://doi.org/10.1002/chin.200943114 Zobrazit plný text záznamu Plný text