Overcrowded molecules. Part V. Stereochemistry and stereospecific photochemical rearrangement reaction of 1,2-bisdiphenylmethylene-3-methylindane
Journal of the Chemical Society C: Organic Pub Date: DOI: 10.1039/J39700000873
Abstract
The stereochemistry of 1,2-bisdiphenylmethylene-3-methylindane is discussed, and evidence is presented that this severely overcrowded molecule undergoes photochemical ring closure by only one of the possible conrotatory modes, followed by a [1,5] hydrogen shift, to give 4b,5-dihydro-11-methyl-5,5,10-triphenylbenzo[b]fluorene having the methyl group anti to the 4b-hydrogen.
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Journal Name：Journal of the Chemical Society C: Organic
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CAS no.: 89640-58-4
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