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1-alkynyldioxaborolanes: Determination of 1J(13C,11B) from 13C NMR studies at 102°C

✍ Scribed by Bruce Victor Cheesman; Laurent Deloux; Morris Srebnik

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
449 KB
Volume
33
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Broad ^13^C resonances, as the result of partially relaxed scalar ^13^C^11^B coupling, were observed for the C‐1 and to a lesser extent C‐2 carbons of 1‐alkynyldioxaborolanes at 25°C. Measurement of the ^13^C spectra at 102°C resulted in a slower ^11^B quadrupolar relaxation rate and allowed the determination of ^1^J(^13^C,^11^B) scalar coupling from the resulting quadruplets for the C‐1 carbon.

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