Due to secondaryamines existed in some accelerants, which is the main source of nitrosamine, so it is considered to use a new type of accelerant.
由于某些促进剂中含有仲胺,这是亚硝胺的主要来源,因此人们正在考虑使用一类新的促进剂。
2
The various methods for the umpolung of carbonyl compounds (aldehydes and ketones), secondaryamines and the most frequently used umpolung reagents are introduced.
先介绍了羰基化合物(醛、酮)的极性转换的各种方法,然后谈到胺的极性转换方法和最常用的极性转换试剂。
3
This paper were introduced the production method and reaction mechanism of fatty primary and secondaryamines, was studies also on optimum reaction condition.