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 Thianthrene
92-85-3

Thianthrene synthesis

8synthesis methods
Thianthrene was first synthesized by John Stenhouse by dry distillation of sodium benzenesulfonate. Thianthrene can be prepared by treating benzene with disulfur dichloride in the presence of aluminium chloride.
-

Yield:92-85-3 82%

Reaction Conditions:

with 1,10-Phenanthroline;potassium carbonate;sulfur in dimethyl sulfoxide at 90; for 12 h;

Steps:


The present invention is achieved in such a way that,To a 25 mL round bottom flask was added o-diiodobenzene (0.5 mmol)Sulfur powder (0.5 mmol),Cuprous iodide (0.05 mmol),1,10-phenanthroline (0.1 mmol),Potassium carbonate (1.0 mmol) andDimethyl sulfoxide (2 mL).The resulting mixture was stirred at 90 ° C for 12 hours.After cooling to room temperature, add 10 mL of water to the system,Then extracted with ethyl acetate (3 x 10 mL) and dried over anhydrous sodium sulfate. After the solvent was distilled off,The resulting residue was purified by silica gel column chromatography in 82% yield.

References:

Jiangxi Normal University;Wan Jieping;Liu Yunyun;Zhang Yi CN104844565, 2017, B Location in patent:Paragraph 0006; 0009; 0010; 0011

FullText

Thianthrene Related Search: