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Formation of methyl-substituted 2-indanones and 1,2-dihydrobenzo-cyclobutenes by the pyrolysis of o-, and m and p-tolyl propargyl ethers

✍ Scribed by J.Michael Riemann; Walter S. Trahanovsky

Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
247 KB
Volume
18
Category
Article
ISSN
0040-4039

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✦ Synopsis

A few years ago we reported that the flash vacuum pyrolysis (F'VP) of phenyl propargyl ether (L) gives substantial yields of 2-indanone (2, 26%) and 1,2-dihydrobenzocyclobutene (3, 31$).l The mechanism shown inthe Scheme was proposed to account for the formation of 2. No mechanism 2 was proposed but it was shown that 3 did not arise from Scheme 6 -

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