Pyridine → HCID 13390867, 화합물

HRID 1154713노트

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HRID 1154713 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 experiment, a sample is recrystallized from water to obtain an analytical sample, m.p. 196°-8° (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-891d3ced1324477d843b4802aac7298b
출처 데이터셋
uspto-grants-1984_12
특허 번호
US04490527

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