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最近,自贡天然气化工研究所以二乙炔为基础成功地合成了带三键的选矿药剂——乙炔乙烯基丁醚和丁炔二缩丁醛。乙炔乙烯基丁醚分子式CH≡C—CH≡CHOC_4H_9,分子量124,沸点(8～9毫米汞柱)57℃,折光率1.4700;丁炔二缩丁醛分子式CH_3—C≡C—CH_2—(OC_4H_9)_2,分子量199,沸点(13毫米汞柱)110～115℃,折光率1.4398。两者都是无色透明液体,略带刺激性气味。在实验室中,二乙炔在强碱性催化剂存在下与丁醇反应可制得乙炔乙烯基丁醚和丁炔二缩丁醛,
Recently, Zigong Natural Gas Chemical Research Institute based on diacetylene successfully synthesized with three key dressing agents - acetylenic vinyl butyl ether and butyne butyral. Acetylene vinyl butyl ether Molecular formula CH≡C-CH≡CHOC_4H_9, molecular weight 124, boiling point (8 ~ 9 mm Hg) 57 ℃, refractive index 1.4700; Butyne butyraldehyde Molecular formula CH_3-C≡C-CH_2- (OC_4H_9 ) _2, molecular weight 199, boiling point (13 mmHg) 110 ~ 115 ℃, refractive index 1.4398. Both are colorless and transparent liquid, slightly irritating odor. In the laboratory, diacetylene can react with butanol in the presence of a strong base catalyst to produce acetylene vinyl butyl ether and butyne butyral,