Pyridine → HCID 21062529, 화합물

HRID 1242274

반응식

HRID 1242274 반응식
[CH:1]([C:3]1[CH:11]=[CH:10][C:6]([C:7](Cl)=[O:8])=[CH:5][CH:4]=1)=[CH2:2].[OH:12][CH2:13][CH:14]1[CH2:18][O:17][C:16](=[S:19])[NH:15]1.N1C=CC=CC=1>C1COCC1>[S:19]=[C:16]1[NH:15][CH:14]([CH2:13][O:12][C:7](=[O:8])[C:6]2[CH:10]=[CH:11][C:3]([CH:1]=[CH2:2])=[CH:4][CH:5]=2)[CH2:18][O:17]1

참가 물질

5

반응물 3

HCID 1049PyridineHCID 110520284-Vinylbenzoyl chlorideHCID 21939074HCID 21939074, 화합물

생성물 1

HCID 21062529HCID 21062529, 화합물수율 73%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

A solution of 4-vinylbenzoyl chloride (21.0 g, 126 mmol) in dry THF (50 mL) was added to a solution of 4-hydroxymethyl-1,3-oxazolidine-2-thione (14.0 g, 105 mmol) in dry THF (250 mL) and pyridine (10.2 mL, 126 mmol) at 0° C. After 12 hours of stirring at room temperature, pyridine hydrochloride was filtered off, and the solvent was evaporated out in vacuo. The residue was purified by silica gel column chromatography eluted with ethyl acetate/acetone (1/1=v/v), followed by recrystallization from a mixed solvent [n-hexane/ethyl acetate (3/1=v/v)] to afford 4-vinylbenzoic acid 2-thioxo-oxazolidin-4-ylmethyl ester as a colorless solid. Yield 73% (24.1 g, 91.5 mmol). 1H NMR (DMSO-d6): δ=4.25–4.77 (5H, >CH—, —CH2—O(CO)—, and —(SC)O—CH2—), 5.45 (d, J=10.8 Hz, 1H, —CH═CH2), 6.03 (d, J=17.8 Hz, 1H, —CH═CH2), 6.84 (dd, J=11.3 and 17.7 Hz, 1H, —CH═CH2), 7.64 (d, J=8.1 Hz, 2H, —C6H4—), 8.01 (d. J=8.1 Hz, 2H, —C6H4—), 10.3 (broad s, 1H, —NH—) ppm. 13C NMR (DMSO-d6): δ=55.0 (CO—CH2—CH<), 65.1 (>CH—), 71.8 (—CH2—O(CO)—), 117.7 (—CH═CH2), 126.5, 128.6, 130.1 (—C6H4—), 136.0 (—CH═CH2), 142.2 (—C6H4—), 165.6 (—O(CO)—C6H4—), 189.3 (>C═S) ppm. IR (KBr): 3185, 1712 (—OCOPh), 1504 (C═S), 1280, 1180, 1110, 971 cm−1.

후처리

  1. filtrationpyridine hydrochloride was filtered off
  2. customthe solvent was evaporated out in vacuo
  3. customThe residue was purified by silica gel column chromatography
  4. washeluted with ethyl acetate/acetone (1/1=v/v)
  5. customfollowed by recrystallization from a mixed solvent [n-hexane/ethyl acetate (3/1=v/v)]

출처 및 근거

ORD 기록
ord-e294491d536149cc9dabcbaa57e13a54
출처 데이터셋
uspto-grants-2006_10
특허 번호
US07115705B2

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