A METALLOCENE MOLECULAR GEAR

Citation
Am. Stevens et Cj. Richards, A METALLOCENE MOLECULAR GEAR, Tetrahedron letters, 38(44), 1997, pp. 7805-7808
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
38
Issue
44
Year of publication
1997
Pages
7805 - 7808
Database
ISI
SICI code
0040-4039(1997)38:44<7805:AMMG>2.0.ZU;2-H
Abstract
In a five step synthesis cyclopentadienyl)(tetraphenylcyclobutadiene)c obalt is produced in 19% overall yield from sodium carbomethoxycyclope ntadienylide. Subsequent cross-coupling with 9-iodoanthracene (76%) an d addition of benzyne (52%) gave yclopentadienyl)(tetraphenylcyclobuta diene)cobalt, the first example of a metallocene containing molecular gear. (C) 1997 Elsevier Science Ltd.