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A Polymer‐Supported Phosphazine as a Stable and Practical Reagent in the Three‐Component Synthesis of Substituted (Cyclopentadienyl)tricarbonylrhenium Complexes
Author(s) -
Minutolo Filippo,
Katzenellenbogen John A.
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(19990601)38:11<1617::aid-anie1617>3.0.co;2-z
Subject(s) - cyclopentadienyl complex , chemistry , reagent , heteroatom , nucleophile , ring (chemistry) , catalysis , polymer chemistry , halide , carbon fibers , organic chemistry , combinatorial chemistry , medicinal chemistry , materials science , composite number , composite material
A very stable heterogenized difunctional cyclopentadienyl‐ring precursor , storable under ambient conditions, readily participates in the simultaneous formation of a η 5 bond with a [ fac ‐Re(CO) 3 ] + species and a σ bond with heteroatom (halides, carboxylates) or carbon nucleophiles (boronic acids) to produce halo‐, acyloxy‐, or carbon‐substituted cyclopentadienyl–Re(CO) 3 complexes in a one‐pot reaction in yields of between 41 and 71 % [Eq. (1)]. No catalyst is required and unprotected (usually) sensitive functional groups are well tolerated.