Gas chromatography-mass spectrometry-olfactometry (GC-MS-O) was used to examine the odor properties of pyrrolyl chalcones, which are usually different from those of the associated acetylpyrroles and alcohols. The biological evaluation assay showed that the products (E)-3-(3-fluorophenyl)-1-(1-methyl-1H-pyrrol-2-yl)prop-2-en-1-one (3j), (E)-1-(1-ethyl-1H-pyrrol-2-yl)-3-phenylprop-2-en-1-one (4a), (E)
报道了一种在空气中借助t -BuOK 将N-取代的乙酰
吡咯和伯醇转化为N-取代的
吡咯基
查耳酮的新方法,并获得了几种具有显着风味和
生物活性的分子。该过程需要将醇氧化成相应的醛,而t -BuOK 对于通过醛醇缩合有效产生 C C 键至关重要。气相色谱-质谱-嗅觉测定法 (GC-MS-O) 用于检测
吡咯查尔酮的气味特性,这些特性通常不同于相关的乙酰
吡咯和
醇类。
生物学评价实验表明,产物( E )-3-(3-
氟苯基)-1-(1-甲基-1)H -pyrrol-2-yl)prop-2-en-1-one ( 3j ), ( E )-1-(1-ethyl-1 H -pyrrol-2-yl)-3-phenylprop-2-en- 1-one ( 4a ), ( E )-3-(4-bromophenyl)-1-(1-ethyl-1 H -pyrrol-2-yl)prop-2-en-1-one ( 4e ), (