| 摘要 |
Title compds. I(R = C1-4 alkyl; R1 = H C1-5 alkyl, C3-6 cycloalkyl, C1-5 polyhaloalkyl, allyl, benzyl; R2-6 = H, halogen, C1-4 alkyl, alkoxy, CF3,NO2 C1-4 alkylamino, aryl)were prepd. thus, a mixed soln. of diethylaniline and methyl chloroformat was mixed with N-(3-methyl-2-butenylidene)isopropylamine at 25-30≦̸C and treated with H20-conc HCl to give N-isopropyl-N-(3-methyl-1,3-butadeenyl)-carbamic acid methyl ester, which was refluxed with 4-fluorobenezoyl acetylene for 6 hr followed by reaction of MnO2 to give 2-(N-isopropyl-N-carbomethoxyamino)-4-methyl-4'-fluorobenzophenone.
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