ISSN:
0947-6539
Keywords:
Grignard reagents
;
Group 14 compunds
;
metallatriptycenes
;
phenylenemagnesium
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
9,10-Dimetallatriptycenes of Group 14 are readily accessable by a novel synthetic approach: reaction of ortho-phenylenemagnesium (1) with RMCl3 afforded 9,10-dimethyl-9,10-dimetallatriptycenes (3; M = Si, Ge, Sn) or 9, 10-dimethyl-9-germa-10-stannatriptycene (11). The reaction can even be tuned to afford unsymmetrically substituted triptycenes such as 9-methyl-10-phenyl-9,10-digermatriptycene (8); in some of these reactions, strong indications were obtained for the intermediacy of tri-Grignard reagents RM(2-C6H4MgCl)3 (5, 10). The new triptycenes were characterised by their spectral data and in the case of 3c (M = Sn) by an X-ray crystal structure determination.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/chem.1460020914
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