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The question of a T.M.M. intermediate (1) in the flash vacuum pyrolysis of 3-isopropylidene-2,2,4,4-tetramethylthietan 1,1-dioxide (2) and of 4-isopropylidene-3,3,5,5-tetramethyl-Δ1,2-pyrazoline (3) and in the photolysis of (3)

✍ Scribed by Richard J. Bushby; Michael D. Pollard

Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
201 KB
Volume
19
Category
Article
ISSN
0040-4039

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✦ Synopsis

4 5 Cur studies of the flash vacuum pyrolysis (F.V.P.) of the thietan dioxide2 at 770 'C had shown that the diene 2 was produced.' Whilst this could be explained in terms of a T.M.M. intermediate _l_ other mechanisms are also possible2 and in an attempt to clarify the situation it was decided to study the F.V.P. behaviour over a range of temperatures and

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