Chloroform → 2-(2-Chloroethyl)-2,3-dihydro-4-methylpyrido[3,2-f][1,4]-thiazepin-5(4H)-one

HRID 4812

반응식

HRID 4812 반응식
[CH3:1][N:2]1[CH2:6][CH2:5][CH:4]([S:7][C:8]2[C:13]([C:14]([OH:16])=O)=[CH:12][CH:11]=[CH:10][N:9]=2)[CH2:3]1.C(Cl)(Cl)[Cl:18].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[Cl:18][CH2:6][CH2:5][CH:4]1[CH2:3][N:2]([CH3:1])[C:14](=[O:16])[C:13]2[CH:12]=[CH:11][CH:10]=[N:9][C:8]=2[S:7]1

참가 물질

5

반응물 3

HCID 6212ChloroformHCID 11776TriphenylphosphineHCID 137264322-[(1-Methyl-3-pyrrolidinyl)thio]-3-pyridinecarboxylic acid

생성물 1

HCID 137264572-(2-Chloroethyl)-2,3-dihydro-4-methylpyrido[3,2-f][1,4]-thiazepin-5(4H)-one

시약·촉매·용매 1

HCID 5943Carbon Tetrachloride용매

실험 절차

A mixture of 80.75 g (0.34 mole) of 2-[(1-methyl-3-pyrrolidinyl)thio]-3-pyridinecarboxylic acid, 500 ml of chloroform, 200 g of carbon tetrachloride and 178 g (0.68 mole) of triphenylphosphine was stirred at reflux for 2.5 hr. The resulting solution was extracted with one 500 ml and three 125 ml portions of 1N hydrochloric acid. The acid extracts were combined and extracted with isopropyl ether. The aqueous layer was basified with sodium hydroxide and extracted three times with chloroform. The combined chloroform extract was dried over sodium sulfate and concentrated. A portion of the residue was chromatographed on the high pressure liquid chromatograph using a silica column and ethyl acetate. The compound obtained was crystallized from isopropyl ether-isopropyl alcohol, m.p. 97°-100° C.

후처리

  1. temperatureat reflux for 2.5 hr
  2. extractionThe resulting solution was extracted with one 500 ml and three 125 ml portions of 1N hydrochloric acid
  3. extractionextracted with isopropyl ether
  4. extractionextracted three times with chloroform
  5. extractionThe combined chloroform extract
  6. dry with materialwas dried over sodium sulfate
  7. concentrationconcentrated
  8. customA portion of the residue was chromatographed on the high pressure liquid chromatograph
  9. customThe compound obtained
  10. customwas crystallized from isopropyl ether-isopropyl alcohol, m.p. 97°-100° C.

출처 및 근거

ORD 기록
ord-3255470380604e3ea543506a53fd60a0
출처 데이터셋
uspto-grants-1988_02
특허 번호
US04727152

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