Studies on Acetylenic Compounds. XXXIX. The Addition Reaction of Cyanogen Bromide to Acetylenic Compounds
作者:Issei Iwai、Tadahiro Iwashige、Yasuo Yura、Norio Nakamura、Kiyoshi Shinozaki
DOI:10.1248/cpb.12.1446
日期:——
The addition of cyanogen bromide to an acetylenic bond was studied. Phenylacetylene reacted with cyanogen bromide in the presence of aluminum bromide to afford trans-β-bromocinnamonitrile. Similarly, p-bromo-and p-methoxyphenylacetylene, tolane and methylphenylacetylene yielded corresponding β-bromocinnamonitriles. Nevertheless, p-nitrophenylacetylene did not react with cyanogen bromide under the same conditions.
研究了
溴化氰与
乙炔键的加成反应。
苯乙炔与
溴化氰在
溴化铝存在下发生反应,生成反式-β-
溴肉桂腈。同样,对
溴和对
甲氧基苯乙炔、
甲苯和甲基
苯乙炔也能生成相应的 β-
溴肉桂腈。然而,在相同条件下,对硝基
苯乙炔没有与
溴化氰发生反应。