双烯酮是化学物质，分子量是84.68。双烯酮又名乙酰乙烯酮或烯 酮二聚物。闪点35.2℃，熔点 -6.5℃，沸点127.4℃，折射率nD1.4379， 相对密度d201.0897，蒸发潜热690.82J/ mol，生成热4.526J/mol。为无色透明具有催 泪性的液体。双烯酮的反应能力很强，可衍生多种产品，是精细化学品染料、医药、农药、食品和饲料添加剂、助剂等的原料。
n. diketene
misc. acetylketene
...乙烯基乙烯酮;Diketene;4-Mcthylene-2-oxetanone;Ketene dimer;Acetylketene 二乙烯酮;双乙烯酮;乙酰乙烯酮;乙酰基乙烯酮;双烯酮;Diketene;Acety ketene 双烯酮;乙烯基乙烯酮;双乙烯酮;乙烯乙酸-β丙酯;二乙烯酮;3-羟基丁烯酸-β-内酯;Diketene;4-Methylene-2-...
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...;Diketene;Acety ketene 双乙烯酮;4-亚甲基-2-氧杂环丁酮;双烯酮;乙烯基乙烯酮;Diketene;4-Mcthylene-2-oxetanone;Ketene dimer;Acetylketene 双乙烯酮;二乙烯酮;3-羟基丁烯酸-β-内酯;Diketen ..
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双乙烯酮 diketene ; Acety ketene ; Ketene dimer ; oxetanone, 4-methylene
双丙酮丙烯酰胺 DAAM ; Diacetone acrylamide ; DMMA ; Dia
醋酸妊娠双烯醇酮 dehydropregnenolone acetate ; dehydropregnenolone ac
醋酸双烯醇酮 dehydropregnenolone acetate
乙基双烯双酮 Ethyldienedione
双烯醇酮醋酸酯 dehydropregnenolone acetate ; Denyprasterone acetate ; DPA
甲基双烯醇酮 Dehydronandrolone
甲基双烯双酮 Estra-4,9-Diene-3,17-Dione ; Methyldienedione
妊娠双烯醇酮 Dehydropregnenolone
而由混合酸酐或双烯酮代替酰氯，中间体也可能是烯酮或烯醇5。
Similarly, using diketene to replace mixed anhydride or acid chloride, intermediate enol 5 May be obtained.
计算结果表明，氟代和氯代磷杂硫烯酮为累积双烯结构，磷杂硫烯酮的异构体含C P 三键，所有分子都具有弯曲几何构型。
The results of calculation show that fluophosphathioketene and chlorophasphatioketene presents cumulative double bonds, isomer presents C(P)triple bonds, all of molecules have a trans-bent geometries.
本文对酮的二甲硅基双烯醇醚的合成反应机理和反应条件进行了探讨，在此基础上合成了四个酮的二甲硅基双烯醇醚，产率较高。
The synthetic mechanism and conditions of dimethylsilyl bis-enol ethers of ketones were studied and four dimethylsilyl his-enol ethers of ketones were synthesized and the yields were high.
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