2) acylal
['æsə,læl]
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乙酰缩醛
1.
A variety of aldehydes can be converted into acylals rapidly and conveniently in the presence of catalytic amounts of poly(vinyl chloride) supported ferric chloride reagent (PVC FeCl 3) at room temperature in excellent yields.
聚氯乙烯支载三氯化铁 (PVC FeCl3)试剂在室温条件下能方便快速催化各类醛与乙酸酐反应 ,以良好产率 (75 %~96% )生成相应乙酰缩
3) acetaldehyde condensation
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乙醛缩合
1.
Compares with the process to produce ethyl acetate from acetic acid and ethanol esterification and acetaldehyde condensation, the paper clarifies that the new process is an advanced one with good economic benefit among the processes to produce ethyl acetate.
简述了乙烯 -醋酸加成制取醋酸乙酯新工艺原理和流程 ;并同醋酸 -乙醇酯化和乙醛缩合制醋酸乙酯生产工艺作比较 ,阐明了新工艺是醋酸乙酯生产中技术先进、经济效益高的生产方法。
4) acetal
[英]['æsitæl] [美]['æsə,tæl]
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乙缩醛
1.
The determination results indicated that the relative standard deviation of acetal was less than 2 %(n=6) ,the linear range was between 0~400 mg/L,and r=0.
利用岛津GC17A气相色谱及惠普HP-101(Methyl Siloxane)19091Y-015型毛细管柱,FID检测器,以乙酸正戊酯为内标,对豉香型白酒中的乙缩醛和乙醛进行检测。
2.
Vapor phase decomposition of acetal on solid phosphate was studied.
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研究了在固体催化剂上乙缩醛气相分解制乙烯基乙醚的反应性能。
3.
Cyanophyll was prepared by the reaction of acetal and benzyl alcohol in the presence of toluene-p-sulfonic acid as calalyst.
以常规试剂乙缩醛和苯甲醇为原料,对甲苯磺酸作催化剂,采用分水器内装无水氯化钙以吸收反应生成的乙醇,进行回流的反应方式,通过醇交换法,一步合成了叶青素。
5) Bromoacetaldehyde diethyl acetal
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溴乙缩醛
6) iodoacetal
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碘乙缩醛
补充资料:缩乙醛
分子式: CH3CH(OCH2CH3)2
CAS号:
性质:又称缩乙醛或亚乙基二乙基醚(ethylidene diethyl ether)。无色挥发性液体,有愉快的香味。沸点102.2℃,相对密度0.8314,折射率1.38193。25℃时可溶于18倍体积的水,可与乙醇混溶。对碱和氧化剂稳定,与稀酸作用分解生成乙醛和乙醇。由乙醛和乙醇在干燥氯化氢存在下,经缩合制得。用作溶剂和安眠药。
CAS号:
性质:又称缩乙醛或亚乙基二乙基醚(ethylidene diethyl ether)。无色挥发性液体,有愉快的香味。沸点102.2℃,相对密度0.8314,折射率1.38193。25℃时可溶于18倍体积的水,可与乙醇混溶。对碱和氧化剂稳定,与稀酸作用分解生成乙醛和乙醇。由乙醛和乙醇在干燥氯化氢存在下,经缩合制得。用作溶剂和安眠药。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条