成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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!

113411-24-8

2-Thiazolesulfonamide(9CI) synthesis

3synthesis methods
2-Thiazolesulfonamide, N-(1,1-dimethylethyl)-

174183-44-9
0 suppliers
inquiry

2-Thiazolesulfonamide(9CI)

113411-24-8
12 suppliers
inquiry

-

Yield:113411-24-8 88%

Reaction Conditions:

with methanesulfonic acid in 1,2-dichloro-ethane;

Steps:

B B.

B. Synthesis of 1,3-thiazole-2-sulfonamide To a solution of (tert-butyl)(1,3-thiazol-2-ylsulfonyl)amine (0.22 g, 1.0 mmol) in 1,2-dichloroethane (10 mL) was added methanesulfonic acid (0.26 mL, 4 mmol). The reaction mixture was heated at 80° C. for 9 hr, concentrated in vacuo and chromatographed to give pure sulfonamide (0.14 g, 88%). ES-MS (M+H)+=164.9.

References:

US2002/77486,2002,A1

2-Thiazolesulfonamide(9CI) Related Search: