Isobutyl chloroformate → N-(4-(Hydroxymethyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide

HRID 921507노트

반응식

HRID 921507 반응식
[CH3:1][C:2]([C:8]1[C:13](=[O:14])[C:12]([CH3:15])=[C:11]([CH3:16])[C:10](=[O:17])[C:9]=1[CH3:18])([CH3:7])[CH2:3][C:4]([OH:6])=O.ClC(OCC(C)C)=O.[NH2:27][C:28]1[CH:35]=[CH:34][C:31]([CH2:32][OH:33])=[CH:30][CH:29]=1>C1COCC1>[OH:33][CH2:32][C:31]1[CH:34]=[CH:35][C:28]([NH:27][C:4](=[O:6])[CH2:3][C:2]([CH3:1])([C:8]2[C:13](=[O:14])[C:12]([CH3:15])=[C:11]([CH3:16])[C:10](=[O:17])[C:9]=2[CH3:18])[CH3:7])=[CH:29][CH:30]=1

참가 물질

5

반응물 3

HCID 62365Isobutyl chloroformateHCID 693314-Aminobenzyl alcoholHCID 144150783-Methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic Acid

생성물 1

HCID 71285360N-(4-(Hydroxymethyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide수율 74%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of 3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic acid (1.75 g, 7.46 mmol) and isobutyl chloroformate (1.11 g, 8.12 mmol) in 20 ml of dry THF, N-methyl morphorline (0.82 ml) was added at 0° C. The resultant mixture was stirred for 30 minutes at 0° C., 4-aminobenzylalcohol (1.38 g, 11.2 mmol) added, and the resultant mixture stirred overnight. After removal of the solid by filtration, the compound was directly purified with silica chromatography using heptane and ethyl acetate as eluent to give a yield of 74%. 1H NMR (300 MHz, CD2Cl2) δ 7.40 (d, J=9, 2H), 7.28 (d, J=9, 2H), 7.19 (s, br, 1H, NH), 4.61 (s, 2H, CH2O), 2.99 (s, 2H, CH2), 2.14 (s, 3H, CH3), 1.97 (s, 6H, CH3), 1.55 (s, 3H, CH3), 1.48 (s, 3H, CH3). MS (m/e): 356 (M+).

후처리

  1. customAfter removal of the solid
  2. filtrationby filtration
  3. customthe compound was directly purified with silica chromatography
  4. customto give a yield of 74%

출처 및 근거

ORD 기록
ord-c4eb192722014c64b38273ed0658b2b8
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09273343B2

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