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CAS号[80546-37-8] 生产工艺 C.I. 颜料紫23中间体 |
CAS号[80546-37-8] 生产工艺 C.I. 颜料紫23中间体
CAS名: 2,5-cyclohexadiene-1,4-dione, 2,5-dichloro-3,6-bis[(9-ethyl-9H-carboyl-3-yl)amino]-
发明者: kraenzlein, Greue, and Tiele 1928年。 用途:C.I. 直接蓝108. C.I. 颜料紫23。
生产工艺文献: BIOS 960, 75. (= 胶卷PB 65657) Dioxazine intermediate. 英国人译自德文,但未注明。抄录如下。
反应式: 本人有加注。 本工艺是用来生产C.I. 颜料紫23.
Method:
The 2 cubic metre capacity enameled vessel is charged with 1940 kg. o-dichlorobenzene (Note 2) and at 500C. 100 kg. aminoethylimide base, 42.5 kg. anhydrous sodium acetate and 87.5 kg. chloranil added. The materials must be dried immediately prior use. The batch is agitated at 60-650C. for 2 hours (Note 3) (Test 1). Then it is slowly (5 hours) heated up under vacuum to 1150C. until no more acetic acid can be detected in the distillate passing over. 以下是闭环生产,请见C.I. 颜料紫23生产工艺 – 略。 日文摘译。 细田豊。《理论制造染料化学》 1957年 。 p. 793. 他也未提有PB报告。 请见原书。 BIOS 960, 79. (= 卷PB 65657) Dioxazine intermediate Product P. 英国人译自德文。抄录如下。
1. Condensation: 它是用来生产C.I. 直接蓝108. 字母P。 是以吡啶为溶剂。
200 kg. 3-aminoethyl carbazole are charged into an enamel pan of 3 cu. metres capacity containing 2000 kg. pyridine and dissolved by stirring 3 hours at room temperature (200C.) (Pyridine is ordinary quality, containing other bases and has a water content of about 5%).
The solution is cooled to 00, then 137 kg. chloranil added through a sieve. It is run 1 hour at 00, 1 hour at 150, and finally 1 hour at 800. Still stirring it is allowed to cool slowly (12 hours) to 450, then cooled by means of the jacket to 200, filtered on a pressure filter and washed four times with 150 kg. pyridine, the filter being stirred during the washing. Finally washed with water (1000 l.) so that the filtrate is only pale brown and dried in vac. at 40-450
(Important: This Temperature not exceeded, as the intermediate contains pyridine of crystallization which is necessary for the next stage. Pyridine content should be 19-20%)
Yield of Dipxazine intermediate product P = 224 kg. Pyridine from mother liquor washings is recovered by distillation of an azeotropic mixture with benzene.
FIAT 1313,III, 259. (=胶卷PB 85172) 美国人编译,只是一句话。 抄录如下。 Condensation of chloranil with 3-amino-N-ethyl-carbazole in ortho-dichlorobenzene,。说明美国人是有选择性的翻译一些资料。
PB 25625, 794-5. Dioxazine intermediate. 1934年12月。 德文原件。 1美元。未抄录。
PB 73719, 2052-3. Oxazinzwichen Produkt P. 1936年8月12日。 德文原件。未抄录。
PB 73719, 2053-4. Oxazinzwischen Produkt S. 1933年11月10日。 德文原件。 未抄录。
PB 73719,2100-1. Dioxazine intermediate. Thiele. 1930年2月12日。 德文原件。未抄录。
加注:1. 这是老产品,说明美国化学文摘服务社,也不知道,是后来编入的CAS号。至少通过它,査不到。
2. 为什么采用二条路线,您知道多少?如果您有新办法,申请专利,我说也一定能通过。
陈忠源 2016年8月1日 于 无锡 明辉国际。
文章作者:陈忠源 |