Reaktion #1622045

Reaktionsgleichung

compound

Ethyl chloro[2-(4-chlorophenyl)hydrazono]acetate

4-chloro-α-methyl styrene

→

title compound

Ethyl 1,5-bis(4-Chlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3-carboxylate

Reaktionsbedingungen

Vorschrift

The compound of Example 6 (1.0 gm) was converted to the title compound (0.6 gm) by adaptation of the procedure of Example 9 to 4-chloro-α-methyl styrene (2.5 ml). The product was a yellow oil. NMR (CDCl3) 7.3-6.8 (m, ArH, 8H), 4.3 (q, 2H, CH2), 3.3 (m, 2H, CH2), 1.8 (s, 3H, CH3), 1.3 (t, 3H, CH3).

Quelle