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Triethylamine → [6-Chloro-4-(3,3-dimethyl-but-1-ynyl)-pyridin-3-yl]-carbamic acid tert-butyl ester

HRID 513069
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HRID 513069 반응식
[C:1]([O:5][C:6](=[O:16])[NH:7][C:8]1[CH:9]=[N:10][C:11]([Cl:15])=[CH:12][C:13]=1I)([CH3:4])([CH3:3])[CH3:2].[CH3:17][C:18]([CH3:22])([CH3:21])[C:19]#[CH:20].C(N(CC)CC)C>C1(C)C=CC=CC=1.O.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:5][C:6](=[O:16])[NH:7][C:8]1[CH:9]=[N:10][C:11]([Cl:15])=[CH:12][C:13]=1[C:20]#[C:19][C:18]([CH3:22])([CH3:21])[CH3:17])([CH3:4])([CH3:3])[CH3:2]
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참가 물질

8

반응물 3

HCID 8471TriethylamineHCID 135123,3-Dimethyl-1-butyneHCID 53415320tert-Butyl (6-chloro-4-iodopyridin-3-yl)carbamate

생성물 1

HCID 57908146[6-Chloro-4-(3,3-dimethyl-but-1-ynyl)-pyridin-3-yl]-carbamic acid tert-butyl ester수율 78%

시약·촉매·용매 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
촉매
HCID 178418476HCID 178418476, 화합물촉매
HCID 962Water용매
HCID 1140Toluene용매

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온도
70 °C

실험 절차

To a deoxygenated solution of (6-chloro-4-iodo-pyridin-3-yl)-carbamic acid tert-butyl ester (23.3 g, 65.6 mmol), 3,3-dimethyl-but-1-yne (53.8 g, 0.656 mol), CuI (623 mg, 3.3 mmol) and triethylamine (13.3 g, 0.13 mol) in toluene (150 mL) and water (50 mL) was added Pd(PPh3)2Cl2 (2.30 g, 3.28 mmol) under N2. The mixture was heated at 70° C. and stirred for 24 hours. The solid was filtered off and washed with ethyl acetate (200 mL×3). The filtrate was evaporated under reduced pressure to obtain a residue, which was purified by column (petroleum ether/ethyl acetate=10/1) to give [6-chloro-4-(3,3-dimethyl-but-1-ynyl)-pyridin-3-yl]-carbamic acid tert-butyl ester (15.8 g, 78%). 1H NMR (300 MHz, CDCl3) δ 9.10 (br s, 1H), 7.21 (s, 1H), 6.98 (br s, 1H), 1.53 (s, 9H), 1.36 (s, 9H).

후처리

  1. filtrationThe solid was filtered off
  2. washwashed with ethyl acetate (200 mL×3)
  3. customThe filtrate was evaporated under reduced pressure
  4. customto obtain a residue, which
  5. customwas purified by column (petroleum ether/ethyl acetate=10/1)

출처 및 근거

ORD 기록
ord-625d21f062fd45b0ae63ef512db8e683
출처 데이터셋
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09102672B2

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