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Chelated Bisphosphites with a Calix[4]arene Backbone: New Ligands for Rhodium‐Catalyzed Low‐Pressure Hydroformylation with Controlled Regioselectivity
Author(s) -
Paciello Rocco,
Siggel Lorenz,
Röper Michael
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990712)38:13/14<1920::aid-anie1920>3.0.co;2-c
Subject(s) - hydroformylation , rhodium , regioselectivity , catalysis , chelation , chemistry , nonanal , polymer chemistry , stereochemistry , organic chemistry
Abstract Extremely high regioselectivities were achieved in the rhodium‐catalyzed low‐pressure hydroformylation of 1‐octene to n ‐nonanal with chelate bisphosphites that contain a p ‐ tert‐ butylcalix[4]arene backbone (shown in the picture). It was possible to tailor the structures and ultimately the catalytic properties of these complexes using molecular modeling calculations.