Tin tetrachloride → [2-(2-Bromo-benzyl)-4,5-dimethyl-furan-3-yl]-(3,5-diisopropyl-4-methoxy-phenyl)-methanone

HRID 1067330Notes

Reaction equation

HRID 1067330 reaction equation
[CH:1]([C:4]1[CH:5]=[C:6]([CH:10]=[C:11]([CH:15]([CH3:17])[CH3:16])[C:12]=1[O:13][CH3:14])[C:7]([OH:9])=O)([CH3:3])[CH3:2].C(Cl)(=O)C(Cl)=O.[Sn](Cl)(Cl)(Cl)Cl.[Br:29][C:30]1[CH:43]=[CH:42][CH:41]=[CH:40][C:31]=1[CH2:32][C:33]1[O:34][C:35]([CH3:39])=[C:36]([CH3:38])[CH:37]=1>CN(C)C=O.C(Cl)Cl>[Br:29][C:30]1[CH:43]=[CH:42][CH:41]=[CH:40][C:31]=1[CH2:32][C:33]1[O:34][C:35]([CH3:39])=[C:36]([CH3:38])[C:37]=1[C:7]([C:6]1[CH:10]=[C:11]([CH:15]([CH3:17])[CH3:16])[C:12]([O:13][CH3:14])=[C:4]([CH:1]([CH3:2])[CH3:3])[CH:5]=1)=[O:9]

Participants

7

Reactant 4

HCID 24287Tin tetrachlorideHCID 65578Oxalyl chlorideHCID 120939412-(2-Bromo-benzyl)4,5-dimethyl-furanHCID 15895030HCID 15895030, compound

Product 1

HCID 12093942[2-(2-Bromo-benzyl)-4,5-dimethyl-furan-3-yl]-(3,5-diisopropyl-4-methoxy-phenyl)-methanoneYield 49.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideCatalystHCID 6344DichloromethaneSolvent

Procedure

The title compound was prepared according to the procedure in Example 5, step 2 using 3,5-diisopropyl-p-anisic acid (0.983 g, 4.16 mmol, RN-117439-59-5), oxalyl chloride (0.398 mL, 4.56 mmol), N,N-dimethylformamide (2 drops), tin (IV) chloride (0.535 mL, 4.58 mmol) and 2-(2-bromo-benzyl)-4,5-dimethyl-furan (1.10 g, 4.16 mmol) in CH2Cl2. Purification on Biotage KP-Sil eluting with 3% EtOAc/pet. ether gave 0.990 g (49%) of the title compound as a clear oil. 1H NMR (DMSO-d6) δ1.15 (d, 12H), 1.84 (s, 3H), 2.18 (s, 3H), 3.27 (septet, 2H), 3.73 (s, 3H), 3.91 (s, 2H), 7.12-7.16 (m, 2H), 7.29 (t, 1H, 7.44 (s, 2H), 7.50 (d, 1H).

Workup

  1. customThe title compound was prepared
  2. customPurification on Biotage KP-Sil
  3. washeluting with 3% EtOAc/pet. ether

Sources & evidence

ORD record
ord-ec5886311ce94857bdfd2f4706c42707
Source dataset
uspto-grants-2001_06
Patent number
US06248764B1

Reaction notes

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