Ammonia → tert-butyl N-(carbamothioylmethyl)carbamate

HRID 1376588

반응식

HRID 1376588 반응식
N.[SH2:2].[C:3]([O:7][C:8]([NH:10][CH2:11][C:12]#[N:13])=[O:9])([CH3:6])([CH3:5])[CH3:4].O>CO>[C:3]([O:7][C:8]([NH:10][CH2:11][C:12](=[S:2])[NH2:13])=[O:9])([CH3:6])([CH3:5])[CH3:4]

참가 물질

6

반응물 4

HCID 222AmmoniaHCID 402Hydrogen SulfideHCID 962WaterHCID 545844tert-butyl N-(cyanomethyl)carbamate

생성물 1

HCID 5324304tert-butyl N-(carbamothioylmethyl)carbamate수율 75.7%

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

25 g of ammonia gas and 50 g of hydrogen sulfide gas were successively dissolved in 230 ml of methanol with ice-cooling and stirring. To this was added 71.45 g of (tert-butoxycarbonylamino)acetonitrile, and the mixture was stirred overnight at room temperature. The reaction solution was cooled with ice. To this was slowly added 500 ml of water, and the mixture was stirred for an additional 2 hours with ice- cooling. The crystals precipitated were collected by filtration, washed with 300 ml of cold water, and then dried under reduced pressure to give 65.88 g of (tert-butoxycarbonyl-amino)acetothioamide as colorless crystals.

후처리

  1. temperaturecooling
  2. stirringthe mixture was stirred overnight at room temperature
  3. temperatureThe reaction solution was cooled with ice
  4. stirringthe mixture was stirred for an additional 2 hours with ice-
  5. temperaturecooling
  6. customThe crystals precipitated
  7. filtrationwere collected by filtration
  8. washwashed with 300 ml of cold water
  9. customdried under reduced pressure

출처 및 근거

ORD 기록
ord-e47cef37de804429998bc60c0e9f48d5
출처 데이터셋
uspto-grants-1997_09
특허 번호
US05663162

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