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1H and 13C NMR study of derivatives of benzoxazolinone

✍ Scribed by Didier Barbry; Daniel Couturier

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 267 KB
Volume: 19
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270190216

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✦ Synopsis

Some derivatives of benzoxazolinone are studied by 'H and 13CNMR spectroscopy. 6-Crotonoyl (or cinnamoyl)-3methylbenzoxazolinones exist in the (8configuration and prefer the syn-planar conformation. 2,3-Dihydro-2,5-and 2,3dihydro -2,7 -dioxo -3-methylcyclopenta -[flbenzoxazoles are easily distinguished by the resonances of their carbon and hydrogen atoms in positions 4 and 8.

Table 2 . "C Chemical shifts @pm) compounds l', 2, 3 and 4 (in CDCI,) NCH,

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