作者:S. S. Koval’skaya、N. G. Kozlov
DOI:10.1134/s1070428010070055
日期:2010.7
amounts (42, 30, and 28%). The E and Z isomers of isophorone oxime reacted with paraformaldehyde and dimethylamine hydrochlride to give mixtures of analogous Mannich condensation products, but the fraction of the addition product at the carbon atom spatially close to the oxime hydroxy group was larger. Under analogous conditions, the reaction of isophorone with aromatic amines and aromatic aldehydes gave
研究了异佛尔酮(3,5,5-三甲基环己-2-烯-1-酮)与多聚甲醛和二甲胺,苄胺和哌啶盐酸盐的曼尼希缩合反应。反应不是选择性的,并且它们都涉及活化的亚甲基和乙烯基碳原子,以及在双键处的环外甲基。形成相当数量(42%,30%和28%)的相应异构氨基酮。该Ë和ž异佛尔酮肟的异构体与低聚甲醛和二甲胺氢氯化物反应生成类似曼尼希缩合产物的混合物,但在空间上靠近肟羟基的碳原子处加成产物的比例较大。在类似条件下,异佛尔酮与芳香胺和芳香醛的反应产生了异佛尔酮与醛的两组分缩合产物,并且该反应仅涉及初始烯酮中的活化亚甲基,并形成了相应的反式,反式-异构体7 -芳基亚甲基衍生物。