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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 2, 1972 - Issue 6
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Original Articles

A New Preparation of 7-methylindanone

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Pages 375-381 | Received 31 Jul 1972, Published online: 26 Jan 2007
 

Abstract

In connection with other studies, we found it necessary to prepare 7-methylindanone, II. The literature records1,2 two preparations of II, neither of which is completely satisfactory since each yields a mixture of 7-methyl- and 5-methylindanone. Both procedures involve cyclizaton of m-tolylpropionic acid or its chloride. Acrylophenones are known to cyclize to indanones under acidic conditions3 and this type of reaction was investigated as a better method for the preparation of 7-methylindanone [Reaction (1)].

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