Premium
Nitrogen‐15 NMR evidence for the structures of N ‐9‐ H ‐Xanthen‐9‐yl‐ and N , N ′‐Di‐9 H ‐xanthen‐9‐yl‐ureas
Author(s) -
Coxon Bruce,
Fatiadi Alexander J.,
Cohen Alex,
Hertz Harry S.,
Schaffer Robert
Publication year - 1980
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270130307
Subject(s) - chemistry , urea , derivative (finance) , medicinal chemistry , carbon 13 nmr , stereochemistry , nitrogen , organic chemistry , financial economics , economics
A new monoxanthen‒9‒yl derivative of urea has been synthesized and the structure of this product ( N ‒9 H ‒xanthen‒9‒ylurea) and that of the previously known N , N ′‒di‒9 H ‒xanthen‒9‒ylurea have been proved by 15 N NMR and other spectroscopic techniques. A series of 13 C and 15 N labeled urea derivatives has been prepared and the utility of their 13 C and 15 N chemical shifts and coupling constants in the structural analysis of urea derivatives has been investigated.