Ammonium Chloride → HCID 86667896, 화합물

HRID 929477노트

반응식

HRID 929477 반응식
C([Li])[CH2:2][CH2:3][CH3:4].[CH:6]1([S:9][S:10][CH:11]2[CH2:13][CH2:12]2)[CH2:8][CH2:7]1.Br[CH2:15][C@H:16]1[CH2:20][O:19][C:18]([CH3:22])([CH3:21])[O:17]1.[Cl-].[NH4+]>C1COCC1>[CH3:21][C:18]1([CH3:22])[O:17][C@@H:16]([CH2:15][C:6]2([S:9][S:10][C:11]3([CH2:15][C@H:16]4[CH2:20][O:19][C:3]([CH3:4])([CH3:2])[O:17]4)[CH2:13][CH2:12]3)[CH2:8][CH2:7]2)[CH2:20][O:19]1

참가 물질

6

반응물 4

HCID 25517Ammonium ChlorideHCID 155708472,2-Dimethyl-4(R)-4-bromomethyl-1,3-dioxalaneHCID 442285261,1'-DisulfanediyldicyclopropaneHCID 178418339Butyllithium

생성물 1

HCID 86667896HCID 86667896, 화합물

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

반응 조건

온도
-78 °C

실험 절차

n-Butyl lithium (1.7 M in hexane, 1.2 eq) is added dropwise over 1 hour to a solution of 1,2-dicyclopropyldisulfane (1 eq) in THF (1.5 mL/mmol), at −20° C. (R)-4-(Bromomethyl)-2,2-dimethyl-1,3-dioxolane (1.1 eq) is then added at −78° C. and stirring at −78° C. continued for an additional 4 hours. Saturated aqueous ammonium chloride solution is added and the mixture is extracted with ethyl acetate (3×). The combined organic extracts are dried (Na2SO4) and purified by flash chromatography (ethyl acetate in hexane eluant).

후처리

  1. additionis then added at −78° C.
  2. extractionthe mixture is extracted with ethyl acetate (3×)
  3. dry with materialThe combined organic extracts are dried (Na2SO4)
  4. custompurified by flash chromatography (ethyl acetate in hexane eluant)

출처 및 근거

ORD 기록
ord-9b6937c0cf9944c0a541ce7a19b479f7
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09296686B2

반응 노트

불러오는 중…