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 2,2,3-TRICHLOROPROPIONITRILE
813-74-1

2,2,3-TRICHLOROPROPIONITRILE synthesis

6synthesis methods
-

Yield:813-74-1 412.0 g (92%)

Steps:

I.a a.

a. α,α,β-Trichloropropanonitrile Acrylonitrile (150.0 g; 2.82 moles) is chlorinated with chlorine gas (>200.2 g; >5.64 moles) for approximately 8 hours. The reaction temperature is maintained at 25°-30° C. by external water cooling. The progress of the reaction is monitored by GLC analysis until essentially a single peak is obtained in the chromatogram. At this point, the flow of chlorine is discontinued and the reaction mixture is degassed by sparging with a vigorous nitrogen flow for one hour. The crude liquid product is distilled to yield 412.0 g (92%) of α,α,β-trichloropropanonitrile (bp 100° C. ? 125 mm Hg).

References:

US5039702,1991,A

2,2,3-TRICHLOROPROPIONITRILE Related Search: