1-Vinylimidazole – a versatile building block for the synthesis of cationic phosphines useful in ionic liquid biphasic catalysis

Autor:	Peter Wasserscheid, Konstantin W. Kottsieper, Othmar Stelzer
Rok vydání:	2001
Předmět:	chemistry.chemical_classification Alkene Process Chemistry and Technology Cationic polymerization Oxide Catalysis chemistry.chemical_compound Hydrocarbon chemistry Ionic liquid Polymer chemistry Organic chemistry Physical and Theoretical Chemistry Phosphine Hydroformylation
Zdroj:	Journal of Molecular Catalysis A: Chemical. 175:285-288
ISSN:	1381-1169
Popis:	Base catalyzed addition of 1-vinylimidazole to primary and secondary phosphines affords tertiary phosphines with terminal 1-imidazolyl substituents C3H3N2 in high yields. The X-ray structure of the oxide Ph2P(O)–(CH2)2–1-C3H3N2 has been determined (space group P 1 ). By selective N-protonation and protected group N-quaternization novel cationic phosphines, e.g. 2a, 2b, 9 and 10, with peripheral 1-imidazolium groups are obtained. These are interesting ligands for catalytic reactions in biphasic systems containing ionic liquids as polar phase and may be employed in hydroformylation of long-chain olefins like 1-octene.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ebfa6abb3ebae8a8681ddb79221f177f https://doi.org/10.1016/s1381-1169(01)00207-2 Zobrazit plný text záznamu Full Text from ScienceDirect