反应 #3481813
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US03959368
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: 6.1 G. PHENYLTHIOUREA AND 4.3 G. DIMETHYL FORMAMIDE DIMETHYLACETAL WERE SUSPENDED IN 100 ML. OF BENZENE WITH ~ 100 MG OF P-TOLUENE SULFURIC ACID AND THE MIXTURE DISTILLED THROUGH A 6 PLATE DISTILLING COLUMN. The methanol-benzene azeotrope, bp 57°C, came off rapidly. After the bp rose to 80°C, the mixture was cooled and the product crystallized from the benzene. The yield was 6.3 g of solid m.p. 131°-138°C which was triturated with ether to give 6 g m.p. 139°-143°C. OF BENZENE WITH ~ 100 MG OF P-TOLUENE SULFURIC ACID AND THE MIXTURE DISTILLED THROUGH A 6 PLATE DISTILLING COLUMN rose to 80°C the mixture was cooled the product crystallized from the benzene The yield was 6.3 g of solid m.p. 131°-138°C which was triturated with ether to give 6 g m.p. 139°-143°C.
来源 ID: ord-717c468e5c264a21b799e57d4ba79416