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!

ChemicalBook CAS DataBase List 1-hydrazino-3-(methylthio)propan-2-ol
14359-97-8

1-hydrazino-3-(methylthio)propan-2-ol synthesis

2synthesis methods
Add 226.25g hydrazine hydrate to 1000ml reaction flask, heat to 90℃, and add 104.17g of glycidyl ether under stirring. The temperature of the reaction system was controlled at 90℃, and then the excess hydrazine hydrate was concentrated under reduced pressure to obtain 120.10g thick colorless liquid. The purity of the gas phase was 96.8%, namely 1-hydrazino-3-(methylthio)propan-2-ol, and the yield was 88.30%.
14359-97-8.png
-

Yield:14359-97-8 88.3%

Reaction Conditions:

with hydrazine hydrate at 90; for 1 h;

Steps:

3 Example 3Preparation of 3-methylthio-2-hydroxy-propyl hydrazine:

In a 1000ml reaction flask,Hydrazine hydrate 226.25g,Heat to 90°C,104.17 g of glycidyl sulfide prepared in Example 1 was added dropwise with stirring.Control the acceleration,The temperature of the reaction system is controlled at 90 °C.After the addition of insulation 1.0h,Excess hydrazine hydrate was concentrated under reduced pressure to obtain 120.10 g of a viscous colorless liquid.The purity of the gas phase was 96.8%, ie, 3-methylthio-2-hydroxy-propyl hydrazine, and the yield was 88.30%.

References:

CN107987069,2018,A Location in patent:Paragraph 0024; 0057-0059

1-hydrazino-3-(methylthio)propan-2-ol Related Search: