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Cyclobutanone‐3,3‐ d 2 and trimethylene‐2,2‐ d 2
Author(s) -
Baldwin John E.,
Patel Dharmesh B.
Publication year - 1999
Publication title -
journal of labelled compounds and radiopharmaceuticals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 47
eISSN - 1099-1344
pISSN - 0362-4803
DOI - 10.1002/(sici)1099-1344(199901)42:1<55::aid-jlcr166>3.0.co;2-v
Subject(s) - chemistry , cyclobutanone , diradical , ketone , flash photolysis , stereochemistry , organic chemistry , ring (chemistry) , excited state , nuclear physics , singlet state , kinetics , reaction rate constant , physics , quantum mechanics
An efficient five‐step synthesis of cyclobutanone‐3,3‐ d 2 is reported. This ketone gives direct access through laser flash photolysis to the trimethylene‐2,2‐ d 2 diradical. The life‐time of trimethylene‐2,2‐ d 2 provides an experimental showing that trimethylene and deuterium‐labeled trimethylene diradicals decay to form cyclopropanes, rather than propenes. Copyright © 1999 John Wiley & Sons, Ltd.