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Chemical Structure| 37051-38-0 Chemical Structure| 37051-38-0

Structure of 37051-38-0

Chemical Structure| 37051-38-0

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Product Details of [ 37051-38-0 ]

CAS No. :37051-38-0
Formula : C8H6ClIO
M.W : 280.49
SMILES Code : O=C(Cl)CC1=CC=C(I)C=C1
MDL No. :MFCD01596916

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Application In Synthesis of [ 37051-38-0 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 37051-38-0 ]

[ 37051-38-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 1798-06-7 ]
  • [ 37051-38-0 ]
YieldReaction ConditionsOperation in experiment
100% With thionyl chloride; for 2h;Heating; Inert atmosphere; A mixture of 4-iodophenylacetic acid (3 g, 11.5 mmol, 1 e.q.) and thionyl chloride (5 mL, 49 mmol, 4.5 e.q.) was heated in an 80 C oil bath under argon for 2 h. The reaction is then allowed to cool to room temperature. The excess thionyl chloride is removed in vacuum to give 6 as a dark yellow oil (3.2 g, 100%) which is used without further purification. NMR (300 MHz, CDCb) d 4.11 (2 H, s, CH2), 7.03 & 7.73(4 H, AA'XX', Ph-H).
With oxalyl dichloride; N,N-dimethyl-formamide; In dichloromethane; at 20℃; for 1h; G2. DMF (5 drops) was added to a dichloromethane solution (30 mL) containing acid Gl (4.02 g, 15 mmol) and oxalyl chloride (1.61 mL, 18 mmol) at room temperature. After stirring for 1 h., excess dichloromethane was removed using reduced pressure. The remaining residue was dissolved in a dry THF and was added to a THF solution containing ethyl cuperate (23 mmol) at -20 C. After 20 min., a saturated copper sulfate solution was then added at -20 C, and the mixture was warmed to room temperature. The resulting solution was extracted with ethyl acetate, dried over sodium sulfate, and concentrated. The remaining residue was purified on silica eluting with 30% ethyl acetate/hexane solution to give 2.29 g (56 % yield) of ketone G2: ESI (MH+) m/z 275.
With oxalyl dichloride; N,N-dimethyl-formamide; In dichloromethane; at 20℃; for 1h;Inert atmosphere; Under an inert atmosphere and at room temperature, 4 ml (43.8 mmol) of oxalyl chloride are added to 3.8 g (14.6 mmol) of 4-iodophenylacetic acid suspended in dichloromethane (54 ml). Two drops of DMF are introduced and the reaction mixture is heated for one hour at room temperature, and then concentrated under reduced pressure. The residue is taken up in toluene and concentrated again. The acid chloride thus obtained is dissolved in dichloromethane (10 ml) and added dropwise to 5 g (14.6 mmol) of the compound obtained from step 1.9 suspended in dichloromethane (30 ml) in the presence of 2.45 g (29.2 mmol) of NaHCO3, under cold conditions (ice bath) and under an inert atmosphere. The reaction medium is stirred overnight at room temperature, and is then filtered through Celite and concentrated under reduced pressure. 8.5 g of product are obtained in the form of a yellow foam, and are used directly in the following step without purification. MH+: 586
With thionyl chloride; at 100℃; for 1.5h;Inert atmosphere; Under an argon atmosphere, to 4-iodophenylacetic acid (11) (prepared by the process described in Chen, Q.-H. et al., Bioorg. Med. Chem. 14, 7898-7909 (2006)) (1.06 g, 4.05 mmol) was added thionyl chloride (5.00 mL, 68.6 mmol) and heated to reflux (100 C.) for 1.5 h. After cooling to room temperature, the mixture was concentrated under reduced pressure to give 4-iodophenylacetyl chloride (12) as a brown oily crude product, which was used in the next reaction without further purification.

  • 2
  • [ 1798-06-7 ]
  • [ 84863-81-0 ]
  • [ 37051-38-0 ]
YieldReaction ConditionsOperation in experiment
With thionyl chloride; In dichloromethane; N,N-dimethyl-formamide; The 4-iodophenylacetamide used as starting material was obtained as follows. Thionyl chloride (39.53) and DMF (2 drops) were added to a solution of 4-iodophenylacetic acid (26.2 g), in dichloromethane (150 ml). The reaction mixture was stirred at ambient temperature for 18 hours and the solvent removed by evaporation to give 4-iodophenylacetyl chloride as an oil (23 g) which was purified by vacuum distillation; b.p. 118-119 C. (0.35 mmMg)
 

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