异丁基脲

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the procedure of Example 4, 7.0 g (60 mmol) of isobutyl urea was reacted with 10.9 g (50 mmol) of ethyl 2-chloro-4,4,4-trifluoroacetoacetate at 140°-150° C. for 18 hours. The product was separated and then recrystallized from methylcyclohexane to yield 4.72 g of a yellow powder product (m.p.=43°-44° C.) identified in Table I. The product was separated recrystallized from methylcyclohexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the procedure of Example 4, 7.0 g (60 mmol) of isobutyl urea was reacted with 10.9 g (50 mmol) of ethyl 2-chloro-4,4,4-trifluoroacetoacetate at 140°-150° C. for 18 hours. The product was separated and then recrystallized from methylcyclohexane to yield 4.72 g of a yellow powder product (m.p.=43°-44° C.) identified in Table I. The product was separated recrystallized from methylcyclohexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the procedure of Example 4, 7.0 g (60 mmol) of isobutyl urea was reacted with 10.9 g (50 mmol) of ethyl 2-chloro-4,4,4-trifluoroacetoacetate at 140°-150° C. for 18 hours. The product was separated and then recrystallized from methylcyclohexane to yield 4.72 g of a yellow powder product (m.p.=43°-44° C.) identified in Table I. The product was separated recrystallized from methylcyclohexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the procedure of Example 4, 7.0 g (60 mmol) of isobutyl urea was reacted with 10.9 g (50 mmol) of ethyl 2-chloro-4,4,4-trifluoroacetoacetate at 140°-150° C. for 18 hours. The product was separated and then recrystallized from methylcyclohexane to yield 4.72 g of a yellow powder product (m.p.=43°-44° C.) identified in Table I. The product was separated recrystallized from methylcyclohexane