Nitric Acid → HCID 178503569, 화합물

HRID 383472

반응식

HRID 383472 반응식
[OH:1][C:2]1[CH:7]=[C:6]([OH:8])[N:5]=[C:4]([S:9][CH3:10])[N:3]=1.FC(F)(F)C(O)=O.[N+:18]([O-])([OH:20])=[O:19]>O>[OH:1][C:2]1[C:7]([N+:18]([O-:20])=[O:19])=[C:6]([OH:8])[N:5]=[C:4]([S:9][CH3:10])[N:3]=1

참가 물질

5

반응물 3

HCID 944Nitric AcidHCID 6422Trifluoroacetic acidHCID 178503559HCID 178503559, 화합물

생성물 1

HCID 178503569HCID 178503569, 화합물

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
23 °C

실험 절차

A solution of 4,6-dihydroxy-2-methylthiopyrimidine (42 g, 0.257 mol) in trifluoroacetic acid (91 ml, 1.186 mol) was stirred at 23° C. and warmed until all solid had gone into solution. The reaction was stirred for five hours at 23° C. Next, fuming HNO3 (15 ml, 350 mmol) was added portion wise to the reaction mixture over 25 minutes at 0° C. The reaction was stirred for twenty hours at 23° C., and treated with H2O (at 23° C.) at 80% conversion (according LC-MS). The solid precipitate was captured via filteration giving 4,6-dihydroxy-2-methylthio-5-nitropyrimidine as a tan-colored solid. The crude solid was azeotroped with toluene to give 35 g of pale tan powdery solid. 1H-NMR: 300 MHz, (CD3OD, 300 MHz) d (ppm) 2.63 (s, 3H). LCMS-ESI+: calc'd for C5H4N3O4S: 202.0 (M−H−); Found: 202.0 (M−H−).

후처리

  1. temperaturewarmed until all solid
  2. stirringThe reaction was stirred for twenty hours at 23° C.

출처 및 근거

ORD 기록
ord-b023a427afb4407a8615ff14abac8306
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08367670B2

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