STUDY OF THE TRANSMETALATION OF SILICON DERIVATIVES OF O-CARBORANES ON TREATMENT WITH (BULI)-LI-N

Authors
ZAKHARKIN LI OLSHEVSKAYA VA GUSEVA VV SHEMYAKIN NF
Citation
Li. Zakharkin et al., STUDY OF THE TRANSMETALATION OF SILICON DERIVATIVES OF O-CARBORANES ON TREATMENT WITH (BULI)-LI-N, Russian chemical bulletin, 47(3), 1998, pp. 475-477
Citations number
13
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
47
Issue
3
Year of publication
1998
Pages
475 - 477
Database
ISI
SICI code
1066-5285(1998)47:3<475:SOTTOS>2.0.ZU;2-1
Abstract
Silyl-substituted o-carboranes 1-R-2-Me3Si(CH2)(n)-1,2-C2B10H10 (R = M e, Ph; n = 0, 1) undergo transmetallation on treatment with (BuLi)-Li- n to form lithium derivatives of o-carboranes, 1-R-2-Li(CH2)(n)-1,2-C2 B10H10, where n = 0, 1. A silicon derivative of o-carborane, 1-Ph-2-(M e3SiCHPh)-1,2-C2B10H10, undergoes neither transmetallation nor metalla tion at the benzyl CH-group on treatment with (BuLi)-Li-n due to signi ficant steric hindrance.