2-Dec-1-ynyl-3-decanyldithieno[2,3-d:2',3'-d']thieno [3,2-b:4,5-b']dithiophene → 2,3-Didecanyldithieno[2,3-d:2',3'-d']thieno[3,2-b:4,5-b']dithiophene

HRID 83971Notes

Reaction equation

HRID 83971 reaction equation
[C:1]([C:11]1[S:27][C:14]2[C:15]3[S:23][C:22]4[C:21]5[S:24][CH:25]=[CH:26][C:20]=5[S:19][C:18]=4[C:16]=3[S:17][C:13]=2[C:12]=1[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])#[C:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10]>[Pt].C(OCC)(=O)C>[CH2:1]([C:11]1[S:27][C:14]2[C:15]3[S:23][C:22]4[C:21]5[S:24][CH:25]=[CH:26][C:20]=5[S:19][C:18]=4[C:16]=3[S:17][C:13]=2[C:12]=1[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10]

Participants

4

Reactant 1

HCID 669248432-Dec-1-ynyl-3-decanyldithieno[2,3-d:2',3'-d']thieno [3,2-b:4,5-b']dithiophene

Product 1

HCID 669253352,3-Didecanyldithieno[2,3-d:2',3'-d']thieno[3,2-b:4,5-b']dithiopheneYield 90.5%

Reagents, catalysts & solvents 2

HCID 23939PlatinumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

2-dec-1-ynyl-3-decanyldithieno[2,3-d:2′,3′-d′]thieno[3,2-b:4,5-b′]dithiophene (107) (2.2 g, 4.15 mmol) is dissolved into ethyl acetate (30 mL) and to this solution, 5% Pt/C (0.5 g) is added. The mixture is stirred under a H2 atmosphere (90 psi) for 24 hours, then filtered. After removal of the ethyl acetate, the residue is purified by chromatography on silica gel eluted with hexane to produce the target compound (2.00, 90.5% yield). M.P.: 50.9-52.5° C. 1HNMR (CD2Cl2): δ 7.41 (d, 1H), 7.33 (d, 1H), 2.83 (t, 2H), 2.50 (t, 2H), 1.73-1.26 (m, 32H), 0.87 (m, 6H). 13CNMR: 140.85, 140.40, 139.93, 133.38, 133.14, 132.22, 129.69, 121.17, 120.09, 98.92, 32.29, 32.25, 29.99, 29.94, 29.72, 29.63, 29.52, 29.33, 29.18, 29.06, 28.94, 23.05, 14.23.

Workup

  1. additionis added
  2. filtrationfiltered
  3. customAfter removal of the ethyl acetate
  4. customthe residue is purified by chromatography on silica gel
  5. washeluted with hexane
  6. customto produce the target compound (2.00, 90.5% yield)

Sources & evidence

ORD record
ord-3b15d9a602524f439611fe2b3376fe11
Source dataset
uspto-grants-2014_09
Patent number
US08846855B2

Reaction notes

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