thus overcoming a very high passivation. Diarylacetylenes led mainly to 1,2-diaroyl-1,2-dialyl-ethylenes. Anodic oxidation of conjugated diaryldiacetylenes, at the same anode, led to a mixture of acetylenic α- and γ -diketones. This represents the very first synthesis of acetylenic α-diketones ArCOCOCCAr.
通过使用石墨板阳极,已在
乙腈中将二芳基
乙炔和二芳基二
乙炔进行了电氧化,从而克服了很高的钝化率。二芳基
乙炔主要导致1,2-二戊酰基-1,2-
二烯丙基-
乙烯。共轭二芳基二
乙炔在同一阳极上的阳极氧化导致炔属α-和γ-二酮的混合物。这代表炔属α-二酮ArCOCOCCAr的第一个合成方法。