Pyridine → HCID 13390867, 화합물

HRID 1731604노트

반응식

HRID 1731604 반응식
[S:1]1(=[O:11])(=[O:10])[C:5]2=[CH:6][S:7][CH:8]=[C:4]2[C:3](=O)[NH:2]1.N1C=CC=CC=1.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:19]>O>[S:1]1(=[O:11])(=[O:10])[C:5]2=[CH:6][S:7][CH:8]=[C:4]2[C:3](=[S:19])[NH:2]1

참가 물질

5

반응물 3

HCID 1049PyridineHCID 14817Phosphorus sulfide (P2S5)HCID 12593672thieno[3,4-d]isothiazol-3(2H)-one 1,1-dioxide

생성물 1

HCID 13390867HCID 13390867, 화합물수율 40%

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
80 °C

실험 절차

To a mixture of 5.6 g. (0.03 mole) of thieno[3,4-d]isothiazol-3(2H)-one 1,1-dioxide* in 50 ml. of dry pyridine is added 5.6 g. (0.016 mole) of phosphorus pentasulfide portionwise over 3 minutes. The viscous mixture is slowly heated in an oil bath under an atmosphere of nitrogen. The temperature of the oil bath is slowly increased to 80° C. after 30 minutes. The temperature of the oil bath is then kept at 80° C. for 25 minutes, the internal temperature reading 63° C. The solution is cooled to 50° C. and is added dropwise over 5 minutes to 200 ml. of water and cooled in an ice bath. The precipitate which forms is collected and discarded. The filtrate is cooled in ice and acidified with concentrated hydrochloric acid to pH 1. The precipitate which forms is collected to yield 40% of material. In another expeirment, a sample is recrystallized from water to obtain an analytical sample, m.p. 196°-8° C. (dec.).

후처리

  1. additionTo a mixture of 5.6 g
  2. temperatureThe viscous mixture is slowly heated in an oil bath under an atmosphere of nitrogen
  3. customreading 63° C
  4. temperatureThe solution is cooled to 50° C.
  5. additionis added dropwise over 5 minutes to 200 ml
  6. customThe precipitate which forms is collected
  7. temperatureThe filtrate is cooled in ice
  8. customThe precipitate which forms is collected

출처 및 근거

ORD 기록
ord-1413e65883e64e67ac771871008a417f
출처 데이터셋
uspto-grants-1986_11
특허 번호
US04622402

반응 노트

불러오는 중…