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A novel reductive dimerization: the reaction of 1,2-dibenzoylethylene with P(III) esters

✍ Scribed by Ronald G. Harvey; Elwood V. Jensen

Publisher
Elsevier Science
Year
1963
Tongue
French
Weight
217 KB
Volume
4
Category
Article
ISSN
0040-4039

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✦ Synopsis

WHEN an ethanolic suspension of trans -1,2 -dibenzoylethylene (DBE) is treated with triethyl phosphite at ambient temperature, a deep green color forms. The DBE gradually dissolves and is replaced by a precipitate of meso-1, 2, 3, 4-tetrabenzoylbutane (Ia), m.p. 202-203', identified+ by acid-catalyzed dehydration to 2, 2', 5, 5'-tetraphenyl-3, 3'-bifuran,

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