“二甲”造句
再溴代得到2-溴 -4,5-
二甲氧基苯甲醛,收率为91.9%,并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性.
This product with Br 2 was obtained 2 - bromo - 4,5 - hydroxymethoxybenzaldehyde through bromination.
这些阴离子受体包括桥联二吡咯柄型二茂铁 、 基于联吡咯的索烃、附加有离子基团的吡咯酰胺、吡咯-2, 5-
二甲酰胺和吡咯 -2,5-二乙酰胺.
These receptors include bridged dipyrrole ansa - ferrocene, bipyrrole - based catenanes , guanidinium - appended amidopyrroles, 2,5 - diamidopyrroles and pyrrole - 2,5 - diacetamides.
使用二异丁基-
二甲氧基硅烷, DQ催化剂的氢调敏感性更好.
With di - iso - butyl dimethoxy DIBS, DQ catalyst was more sensitive to hydrogen regulation.