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Methyl N-(triethylammoniosulfonyl)carbamate → 2-(4-Allyloxy-3,5-dimethyl-phenyl)-5-(5-isobutyl-thiophen-2-yl)-[1,3,4]oxadiazole

HRID 1094305
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HRID 1094305 반응식
[CH2:1]([C:5]1[S:9][C:8]([C:10]([NH:12][NH:13][C:14](=O)[C:15]2[CH:20]=[C:19]([CH3:21])[C:18]([O:22][CH2:23][CH:24]=[CH2:25])=[C:17]([CH3:26])[CH:16]=2)=[O:11])=[CH:7][CH:6]=1)[CH:2]([CH3:4])[CH3:3].CC[N+](S(N=C(OC)[O-])(=O)=O)(CC)CC>C1COCC1.C(OCC)C>[CH2:23]([O:22][C:18]1[C:19]([CH3:21])=[CH:20][C:15]([C:14]2[O:11][C:10]([C:8]3[S:9][C:5]([CH2:1][CH:2]([CH3:4])[CH3:3])=[CH:6][CH:7]=3)=[N:12][N:13]=2)=[CH:16][C:17]=1[CH3:26])[CH:24]=[CH2:25]
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참가 물질

5

반응물 2

HCID 2724994Methyl N-(triethylammoniosulfonyl)carbamateHCID 666369514-allyloxy-3,5-dimethyl-benzoic acid N'-(5-isobutyl-thiophene-2-carbonyl)-hydrazide

생성물 1

HCID 666366842-(4-Allyloxy-3,5-dimethyl-phenyl)-5-(5-isobutyl-thiophen-2-yl)-[1,3,4]oxadiazole수율 76.5%

시약·촉매·용매 2

HCID 3283Diethyl Ether용매HCID 8028
Tetrahydrofuran
용매

실험 절차

A solution of 4-allyloxy-3,5-dimethyl-benzoic acid N′-(5-isobutyl-thiophene-2-carbonyl)-hydrazide (1.40 g, 3.62 mmol) and Burgess reagent (1.12 g, 4.71 mmol) in THF (15 mL) is stirred at 110° C. for 3 min under microwave irradiation. The mixture is diluted with diethyl ether, washed with water, dried over MgSO4, filtered and evaporated. The crude product is purified by CC on silica gel eluting with heptane:EA 9:1 to give 2-(4-allyloxy-3,5-dimethyl-phenyl)-5-(5-isobutyl-thiophen-2-yl)-[1,3,4]oxadiazole (1.02 g) as a colourless oil; LC-MS: tR=1.21 min, [M+1]+=369.15.

후처리

  1. washwashed with water
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. customevaporated
  5. customThe crude product is purified by CC on silica gel eluting with heptane:EA 9:1

출처 및 근거

ORD 기록
ord-b218d54b9c5b46d388165d8399ab5f4f
출처 데이터셋
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08133910B2

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