반응 #74743

ord-558bb867ab5c4bd4a3b4e2b03e7cc939

반응 방정식

CS(C)=O
DMSO
O=[N+]([O-])c1ccc(Cl)nc1
2-Chloro-5-nitropyridine
OCC(F)(F)F
2,2,2-trifluoroethanol
[Li+].[OH-]
lithium hydroxide
O=[N+]([O-])c1ccc(OCC(F)(F)F)nc1
2-(2,2,2-Trifluoroethoxy)-5-Nitropyridine

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타the product was separated by filtration
  2. 2
    기타It was crystallized from ethyl acetate-hexanes, yield 5.0 grams
  3. 3
    기타35°-37° C.

실험 절차

2-Chloro-5-nitropyridine (9.5 grams), 2,2,2-trifluoroethanol (6.0 grams), and lithium hydroxide (4.0 grams) were mixed in 50 ml. of DMSO and stirred overnight (about 18 hours) at room temperature. The reaction mixture was then poured into water and the product was separated by filtration. It was crystallized from ethyl acetate-hexanes, yield 5.0 grams, m.p., 35°-37° C.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US04173639uspto-grants-1979_11