Tetrahedron Letters p. 5119 - 5122 (1985)
Update date:2022-08-11
Topics:
Huisgen, Rolf
Weinberger, Rudolf
The cycloaddition of 1-benzylidenepyrazolid-3-one betaine to (E)-β-nitrostyrene, which has been claimed to furnish 15-30percent non-stereospecific product, revealed stereospecificity up to 99.92percent in a renewed study; (Z)-β-nitrostyrene stereoisomerizes under the influence of the 1,3-dipole
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