脒

A facile one-step method waspresented for the synthesis of N-fluoroalkanesulfonyl amidines 〓 inmoderate to good yield from the reaction of azides, ketones or aldehydes, andsecondary amines at room temperature.

在和无官能团取代的烯胺化合物的反应中，它发生了烷基迁移过程，而且利用该反应我们实现了由酮或醛，二级胺和叠氮一锅法合成脒类化合物〓。

Heptachlor epoxide was used as internal standard. Results The detection limit ranged from 0.2-15μgkg^(-1). The recoveries of most pesticides were good with the ranged of 70%-120% in 9 medicine crops.

结果 对48种中药材进行了检测；除敌敌畏、杀虫脒、磷丹及三唑磷外，其余农药的检测限都在0.2~15gkg^(-1)之间；以9种中药材为例检测，大部分农药的回收率在70%~120%之间。

Four kinds of hemicyanine dyes are synthesized by condensation of the benzotellurazolium iodides with diphenylformamidine in acetic anhydride.

将苯并碲唑季铵碘盐与二苯甲脒在乙酸酐中缩合，得到了4个半菁。

Treatment of pterin (2-amino-4-hydroxy-pteridine) derivatives with N,N-dimethylformamide dimethylacetal [1,(CH 3) 2NCH(OCH 3) 2] usually gave corresponding N 2-(N,N-dimethylaminomethylene)- pterin derivatives in polar solvents.

用N ，N 二甲基甲酰胺缩二甲醇 [(CH3 ) 2 NCH(OCH3 ) 2 ，1]和蝶呤(2 氨基 4 羟基蝶啶)衍生物在极性有机溶剂中反应一般得到脒化产物：N2 (N ，N 二甲基氨基亚甲基)-蝶呤衍生物。

The adsorption of chlordimeform on red soil and vegetable soil was studied in this work.

本文研究了杀虫剂杀虫脒在红壤和菜园土中的吸附。

The adsorption of chlordimeform on red soil and vegetable soil was studied in thes work.

本文研究了杀虫剂杀虫脒在红壤和菜园上中的吸附。

The results indicated that the effects of all insecticides on control spiraling whitefly was significantly different. Acetamiprid, methomyl and beta-cypermethrin were more effective against the pest.

结果表明，不同药剂对不同虫态的螺旋粉虱的防效存在显著差异，而啶虫脒、灭多威和高效氯氰菊酯对成虫和若虫均有理想防效。

Other drugs that resembled statins in their activity in mitochondria included amoxapine, cyclobenzaprine, griseofulvin, pentamidine, paclitaxel, propafenone, ethaverine, trimeprazine and amitriptyline.

其他一些会和他汀类一样引起线粒体损害的药物包括阿莫沙平、环苯扎林、灰黄霉素、喷他脒、紫杉醇、普罗帕酮、依沙维林、异丁嗪和阿米替林。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。