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An Alkylidyne Analogue of Tebbe's Reagent: Trapping Reactions of a Titanium Neopentylidyne by Incomplete and Complete 1,2‐Additions
Author(s) -
Bailey Brad C.,
Fout Alison R.,
Fan Hongjun,
Tomaszewski John,
Huffman John C.,
Mindiola Daniel J.
Publication year - 2007
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/anie.200703079
Subject(s) - reagent , moiety , pyridine , chemistry , cleavage (geology) , titanium , stereochemistry , medicinal chemistry , organic chemistry , materials science , fracture (geology) , composite material
Who is the man behind the aluminum mask? The first Group 4 Lewis acid stabilized alkylidyne ( 2 ; see picture) is generated by incomplete addition of trimethylaluminum across a {TiC t Bu} moiety ( 1 ; PNP=[2‐{P(CHMe 2 ) 2 }‐4‐MeC 6 H 3 ] 2 N − ). In contrast, B(OCH 3 ) 3 completely adds to 1 by BO bond cleavage to afford an unusual alkylidene. Complex 2 , a masked alkylidyne titanium compound, also ring‐opens pyridine.