Unexpected transformation of 3-amino-4,4,4-trifluoro-1-phenylbut-2-en-1-one into 2,6-diphenyl-4-trifluoromethylpyridine
作者:Vera I. Filyakova、Nadezhda S. Boltacheva、Pavel A. Slepukhin、Marina G. Pervova、Valery N. Charushin
DOI:10.1016/j.mencom.2020.09.042
日期:2020.9
On heating in glacial acetic acid (or ethanol in the presence of manganese( ii ) acetate), 3-amino-4,4,4-trifluoro-1-phenylbut-2-en-1-one undergoes unusual transformation into 2,6-diphenyl-4-trifluoromethylpyridine. The regioisomeric β-aminovinyl ketone, viz. 1-amino-4,4,4-trifluoro-1-phenylbut-1-en-3-one, remains unchanged under similar reaction conditions.
在冰醋酸(或乙酸锰(ii)存在下的乙醇)中加热时,3-氨基-4,4,4-三氟-1-苯基丁-2-烯-1-酮经历不寻常的转化为2,6 -二苯基-4-三氟甲基吡啶。区域异构的β-氨基乙烯基酮,即。1-氨基-4,4,4-三氟-1-苯基丁-1-烯-3-酮在相似的反应条件下保持不变。