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合成
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Six new compounds, namely, diacetone glucose monopalmitate, diacetone glucose monostearate, D-glucose monopalmitate, D-glucose monostearate, D-glucose tetraacetate monopalmitate,and D-glucose tetraacetate monostearate, have been synthesized and some of their properties have been described. Monoesters of glucose and higher fatty acids have been shown to be surface-active and possess good emulsifying property. Both D-glucose monopalmitate and monostearate exhibit polymorphism and each compotmd exists in four polymorphic...

Six new compounds, namely, diacetone glucose monopalmitate, diacetone glucose monostearate, D-glucose monopalmitate, D-glucose monostearate, D-glucose tetraacetate monopalmitate,and D-glucose tetraacetate monostearate, have been synthesized and some of their properties have been described. Monoesters of glucose and higher fatty acids have been shown to be surface-active and possess good emulsifying property. Both D-glucose monopalmitate and monostearate exhibit polymorphism and each compotmd exists in four polymorphic forms.Diacetone glucose monopalmitate,diacetone glucose monostearate,D-glucose tetraacetate monopalmitate,D-glucose tetraacetate monostearate are all low-melting crystalline substances,and no polymorphism has been obserred among them.

本文报告6种新化合物:二丙酮缩葡萄糖一软脂酸酯、二丙酮缩葡萄糖一硬脂酸酯、D-葡萄糖一软脂酸酯、D-葡萄糖一硬脂酸酯、D-葡萄糖一软脂酸四乙酸酯及D-葡萄糖一硬脂酸四乙酸酯的合成方法及其性质.葡萄糖与高级脂肪酸所生成的葡萄糖单酯为优越的乳化剂.D-葡萄糖一软脂酸酯及一硬脂酸酯都具有同质多晶的性质,各有4种同质多晶体.其他4种化合物都是低熔点的晶体,未发现有同质多晶现象的存在.

A detailed procedure, which is essentially a modification of Baker and Briggs' method, is described here for the synthesis of α-phenyl-β-(3,5-diiodo-4-hydroxy-phenyl)-propionic acid (Priodax). Two derivatives of Priodax, one ,being new, were also prepared. The Priodax obtained exhibits low toxicity and produces good cholecystographic shadows. An attempt was made to employ hydriodic acid and red phosphorus for the simultaneous reduction and demethylation of p-methoxy-a-phenylcinnamic acid without success. How-...

A detailed procedure, which is essentially a modification of Baker and Briggs' method, is described here for the synthesis of α-phenyl-β-(3,5-diiodo-4-hydroxy-phenyl)-propionic acid (Priodax). Two derivatives of Priodax, one ,being new, were also prepared. The Priodax obtained exhibits low toxicity and produces good cholecystographic shadows. An attempt was made to employ hydriodic acid and red phosphorus for the simultaneous reduction and demethylation of p-methoxy-a-phenylcinnamic acid without success. How- ever, this substituted cinnamic acid can be reduced in good yield by means of sodium amalgam.

本文主要報告α-苯基-β-(3,5-二碘-4-羥苯基)-丙酸的詳細合成方法。所得產品毒性較舶來品稍低,在X射線下不透光度很大,適合臨床上胆囊造影之用。實驗過程中,曾以氫碘酸及紅磷還原對甲氧基-α-苯代肉桂酸,未獲成功。但此還原反應在鈉汞齊作用下,可以順利進行。

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利用水煤气合成汽油中的七碳烷、烯烃馏份(90—100°实沸沸程)为原料,在装有50毫升的氧化铬/氧化铝催化剂的固定床内进行催化芳烃化反应,发现在所考察的试验范围内,芳烃生成率ω,进料的总转化率 y 及气体的生成率 z 与空间流速 V 的关系均可分别用著名的方程式来关连.本文提供了这些关连式的内容.同时,发现积聚在催化剂表面的焦的生成速度可以采用 Villers-Fisher 所提出的论据来关连.本文也提供了该关连式的内容.根据试验的初步结果,我们有理由相信七碳烷、烯烃在催化芳煤化时生成焦的途径,可能是和 Voorhies 曾经考察过的催化裂化时生成焦的途径及 Watson 等所曾经考察过的环己烷催化脱氢时的焦生成途径相同.

 
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