异丙基

在本论文中，将Cl、异丙基、甲氧基、硝基、氨基等基团引入到黄酮的A环和B环合成了一系列新型黄酮类衍生物。

A novel series of flavone derivatives were synthesized with the substitution of chlorine , isopropyl , methoxy , nitro and amino groups in the A or B rings of flavone .

实验证明了在咪唑环C2-位处引入甲基、异丙基、苯基等可以提高咪唑阳离子在高温强碱条件下的稳定性。

The introduced of methyl , isopropyl or phenyl to C2-position of imidazolium ring enhanced the chemical stabiliy of imidazolium cations at elevated temperature under alkaline condition .

其中具有抗突变作用的成分可能为：二甲基二硫化物，4-甲基-2（1H）-吡啶硫酮，二（异丙基）三硫化物，3-烯丙巯基丙酸。

Their antimutagenic substances may be dimethyl disulfide , 4-methyl-2-pyridinethione , di-2-propenyl trisulfide , 3 - ( allylthio ) - propionic acid .

结果表明：反应最佳温度为25℃，合成时间200分钟，物料摩尔比1.06∶1，异丙基黄原酸甲酸乙酯的产率可以达到94%以上。

The results show that the optimum technical parameters for the synthesis of isopropyl xanthogen ethyl formate are 25 ℃, 200 minutes , 1.06 ∶ 1 ( the ratio of molar ), and the percentage productivity of isopropyl xanthate can be over 94 % .