| 摘要 |
PROBLEM TO BE SOLVED: To obtain a new compound useful as an organic base precursor having the rapidity of producing a base at the time of heating compatible with the stability during the preservation. SOLUTION: This compound is represented by formula I [R<1> to R<4> are each H, an alkyl, an alkenyl, an aralkyl or an aryl; Z is a substituent group having a value of σ of >=0 when defined by the Hammett's equation; [(i)+(j)] is 3 and (i) is 1 or 2] or formula II (R<5> to R<10> are each same as R<1> to R<4> ), e.g. a compound represented by formula III. The compound represented by formula I is obtained by charging stearylamine, triethylamine and chloroform into a flask equipped with a stirrer, dropping 1.5 g of 1-chloro-2-methyl-2-propyl chloroformate thereinto under cooling with ice, continuing the stirring for 2 hr, then diluting the reactional solution with chloroform, washing the diluted reactional solution with water, dehydrating the washed solution, subsequently distilling off the chloroform under a reduced pressure and recrystallizing the prepared colorless powder from a mixed solvent of an ether with n-hexane. |
