Premium
Efficient Platinum(II) Catalyzed Hydroformylation Reaction in Water: Unusual Product Distribution in Micellar Media
Author(s) -
Gottardo Marina,
Scarso Alessandro,
Paganelli Stefano,
Strukul Giorgio
Publication year - 2010
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201000341
Subject(s) - hydroformylation , chemistry , catalysis , cationic polymerization , platinum , trifluoromethanesulfonate , styrene , micelle , aqueous solution , selectivity , substrate (aquarium) , organic chemistry , dissolution , aqueous medium , rhodium , copolymer , polymer , oceanography , geology
Abstract The hydroformylation of a variety of terminal and internal alkenes is efficiently performed by cationic platinum triflate complexes of the type [P 2 Pt(H 2 O) 2 ](OTf) 2 under mild conditions in an aqueous micellar medium. The use of surfactants is essential to ensure dissolution of the catalyst and substrate in water with catalysts being positioned on the anionic surface of the micelles. Aldehydes are obtained with linear to branched ratios up to >99:1. With styrene derivatives also the corresponding benzaldehydes are formed. The catalyst can be separated by extraction of the organic products with hexane and recycled for at least four times with only a modest loss of activity and no effect on selectivity.