A CARBON-13 AND NITROGEN-15 ISOTOPIC LABELLING STUDY OF INTERMEDIATES AND BY-PRODUCTS IN THE REACTION OF CHALCONE AND PHENYLHYDRAZINE TO GIVE 1,3,5-TRIPHENYL-2-PYRAZOLINE

DOI: 10.1016/S0040-4039(00)85452-0

Source and publish data:

Tetrahedron Letters p. 6277 - 6280 (1986)

Update date:2022-08-04

Topics:

Authors:

Kenny, Peter W.

Robinson, Michael J. T.

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Article abstract of DOI:10.1016/S0040-4039(00)85452-0

The formation of 1,3,5-triphenyl-2-pyrazoline 7 from chalcone and phenylhydrazine via 1,4-addition followed by an allowed 5-endo-trig cyclisation has been demonstrated by (13)C and (15)N labelling in time resolved (13)C NMR spectroscopy.

Full text of DOI:10.1016/S0040-4039(00)85452-0

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