Hydrazinomercuriation of terminal alkynes and 3-alken-1-ynes. Syntheses of hydrazones and 1-amino-1-aza-1,3-dienes
作者:Jos� Barluenga、Fernando Aznar、Ram�n Liz、Miguel Bayod
DOI:10.1039/c39880000121
日期:——
Although hydrazines cannot be directly added to non-activated, terminal acetylenes in the presence of mercury(II) salts, this difficulty was circumvented by treating hydrazines with 1-alkynylmercury trifluoroacetates (2); in this way, several hydrazones (4a–h) and 1-amino-1-aza-1,3-dienes (4i–m) were easily prepared.
尽管在存在汞(II)盐的情况下无法将肼直接添加到未活化的末端乙炔中,但是通过用三氟乙酸1-炔基汞处理肼来解决这一难题(2);通过这种方法,可以轻松制备几种(4a - h)和1-氨基-1-氮杂-1,3-二烯(4i - m)。