A photochemical reaction of a molecular entity comprising two p-systems, separated by a saturated carbon atom (a 1,4-diene or an allyl-substituted aromatic analog), to form an ene- (or aryl-) substituted cyclopropane. The rearrangement formally amounts to a 1,2 shift of one ene group (in the diene) or the aryl group (in the allyl-aromatic analog) and u2018bond formationu2019 between the lateral carbons of the non-migrating moiety.
The numerical value of di-pimethane rearrangement in Chaldean Numerology is: 6
The numerical value of di-pimethane rearrangement in Pythagorean Numerology is: 9
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"di-pimethane rearrangement." Definitions.net. STANDS4 LLC, 2017. Web. 28 May 2017. <http://www.definitions.net/definition/di-pimethane rearrangement>.