午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Triethylamine hydrochloride
554-68-7

Triethylamine hydrochloride synthesis

4synthesis methods
-

Yield:554-68-7 97%

Reaction Conditions:

with triethylamine in tetrahydrofuran;

Steps:

147.B B.

30.6 parts by weight of imidazolidine-2-thione were boiled overnight with 54.4 parts by weight of trimethylchlorosilane and 51.5 parts by weight of triethylamine in absolute tetrahydrofurane. The warm suspension was freed of the precipitated triethylamine hydrochloride by filtration, and the filtrate was evaporated and dried in a vacuum desiccator. Melting point: approx. 130°C; Yield: 97%. Calculated: N, 14.4; S, 16.5; Found: N, 13.8; S, 16.9.

References:

US3933795,1976,A

Triethylamine hydrochloride Related Search: