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[2H] Labelling studies on the mechanism of electrocyclic aromatic substitution by the diazo-group

✍ Scribed by Thomas K. Miller; John T. Sharp; Gordon J. Thomas; Ian Thompson

Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
219 KB
Volume
22
Category
Article
ISSN
0040-4039

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✦ Synopsis

A primary deuterium isotope effect has been observed in the cyclisation of diazocompounds (1) selectively deuteriated at the ring closure sites.

We have recently reported on the directive effects of meta substituents (R) in the synthesis of 1,2_benzodiazepines

(2) and (3) from B-aryl-a,B-unsaturated diazoalkanes (l).l

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