Sodium Carbonate → methyl 6-cyclohexyl-5-(2-vinylphenyl)-4H-thieno[3,2-b]pyrrole-2-carboxylate

HRID 1008976

반응식

HRID 1008976 반응식
Br[C:2]1[NH:6][C:5]2[CH:7]=[C:8]([C:10]([O:12][CH3:13])=[O:11])[S:9][C:4]=2[C:3]=1[CH:14]1[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1.[CH:20]([C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1B(O)O)=[CH2:21].C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.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>[CH:14]1([C:3]2[C:4]3[S:9][C:8]([C:10]([O:12][CH3:13])=[O:11])=[CH:7][C:5]=3[NH:6][C:2]=2[C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=2[CH:20]=[CH2:21])[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 27735872-Vinylbenzeneboronic acidHCID 58679077methyl 5-bromo-6-cyclohexyl-4H-thieno[3,2-b]pyrrole-2-carboxylate

생성물 1

HCID 67298999methyl 6-cyclohexyl-5-(2-vinylphenyl)-4H-thieno[3,2-b]pyrrole-2-carboxylate수율 71%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 312751,4-Dioxane용매

실험 절차

Methyl 5-bromo-6-cyclohexyl-4H-thieno[3,2-b]pyrrole-2-carboxylate (prepared as described in Example 7, Step 1) and (2-vinylphenyl)boronic acid (1.5 eq.) were dissolved in dioxane (0.06 M) and 2M aq. Na2CO3 (6 eq.) was added. The solution was degassed by bubbling argon, Pd(PPh3)2Cl2 (0.2 eq.) was added, and the reaction mixture was placed in an oil bath preheated to 110° C. and stirred for 1 h; after removing all volatiles the title compound was isolated by chromatography (PE/EtOAc 10:1). Yield: 71%. 1H-NMR (400 MHz, CDCl3, 300 K, δ) 8.16 (bs, 1H), 7.69 (d, 1H, J 7.9), 7.68 (s, 1H), 7.45-7.35 (m, 3H), 6.67 (dd, 1H, J 17.5, 11.0), 5.74 (d, 1H, J 17.5), 5.25 (d, 1H, J 11.0), 3.91 (s, 3H), 2.54-2.47 (m, 1H), 1.81-1.23 (m, 10H); MS (ES+) m/z 366 (M+H)+.

후처리

  1. customThe solution was degassed
  2. additionwas added
  3. customthe reaction mixture was placed in an oil bath
  4. custompreheated to 110° C.
  5. customafter removing all volatiles the title compound
  6. customwas isolated by chromatography (PE/EtOAc 10:1)

출처 및 근거

ORD 기록
ord-d95d8e1b59684113b8a0006376ae03ef
출처 데이터셋
uspto-grants-2011_07
특허 번호
US07973026B2

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