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Chemical Structure| 147139-84-2 Chemical Structure| 147139-84-2

Structure of 147139-84-2

Chemical Structure| 147139-84-2

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Product Details of [ 147139-84-2 ]

CAS No. :147139-84-2
Formula : C7H11IO2
M.W : 254.07
SMILES Code : O=C(OC(C)(C)C)/C=C\I

Safety of [ 147139-84-2 ]

Application In Synthesis of [ 147139-84-2 ]

* 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 [ 147139-84-2 ]

[ 147139-84-2 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 540-88-5 ]
  • [ 6214-35-3 ]
  • [ 147139-84-2 ]
YieldReaction ConditionsOperation in experiment
81% With methanesulfonic acid; In dichloromethane; at 20℃; for 3h;Inert atmosphere; A 5-L three-neck round-bottom flask was equipped with overhead stirrer, temperature probe, argon inlet and outlet, and water cooling condenser. The flask was charged with (Z)-3-iodo-acrylic acid, 26 (575 g, 2.9 mol), tert-butyl acetate (2.3 L, 17 mol, 5 equiv., 4 vol), dichloromethane (800 mL, 1.4 vol) and methanesulfonic acid (21.8 g, 145 mmol, 0.05 equiv.). The reaction mixture was stirred under argon for 3 h. HPLC analysis of the sample showed the presence of the product (>82% AUC). 5 N sodium hydroxide solution (1.4 L) was added to quench the reaction while maintaining the internal temperature NMT 20 C. The resulted solution was transferred to a 6-L separatory funnel. The layers separated and the aqueous phase was extracted with heptane (500 mL). The combined organic phase was dried over magnesium sulfate for 1 h and filtered. The filtrate was concentrated under reduced pressure and dried in a vacuum oven at 45 C overnight to obtain 598 g of 24 as a light yellow oil (yield 81%, HPLC purity 99% (AUC)).
80% With trifluorormethanesulfonic acid; In dichloromethane; at 20℃; for 1h; To a solution of 57 % hydrogen iodide (60 mL) in water (90 mL) was added propynoic acid (propiolic acid) 20 (20 g). The resulting mixture was heated at 50 C for 24 h. The mixture was cooled to room temperature and MTBE (100 mL) was added. The two layers were separated. The aqueous layer was extracted with MTBE (100 mL). The combined organic phase was washed with 2 M NaS203 (2 x 50 mL), 5 % NaCl and dried over MgS04. The solution was filtered and concentrated to dryness to afford a beige solid product 21 (49 g, 87%). To a solution of (Z)-3-iodo- acrylic acid 21 (48 g) and t-BuOAc (140 g) in CH2CI2 (144 mL, 3 vol.) was added TfOH (1.8 g). The solution was stirred at room temperature for 1 h. The reaction was deemed complete (acid: HPLC area% 20.27%). The solution was neutralized with 2 M K2CO3 (242 mL). Heptane (144 mL) was added. The two layers were separated. The aqueous layer was extracted with heptane (144 mL). The combined organic phase was washed with water (144 mL) and dried over MgS04. The solution was filtered and concentrated to dryness to afford an oil product 5 (49 g, 80%, HPLC area%: 98.22%).
80% With trifluorormethanesulfonic acid; In dichloromethane; at 20℃; for 1h; To a solution of 57 % HI (60 mL) in water (90 mL) was added propynoic acid 20 (20 g). The resulting mixture was heated at 50 c for 24 h. The mixture was cooledto room temperature and MTBE (100 mL) was added. The two layers were separated. The aqueous layer was extracted with MTBE (100 mL). The combined organic phase was washed with 2 M Na5203 (2 x 50 mL), 5 % Nacl and dried over Mg504. The solution was filtered and concentrated to dryness to afford a beige solids product 21 (49 g, 87%). To a solution of (Z)-3-iodo-acrylic acid 21 (48 g) and t-BuOAc (140 g) inCH2C12 (144 mL, 3 vol.) was added TfOH (1.8 g). The solution was stirred at room temperature for 1 h. The reaction was deemed complete (acid: HPLC area% 20.27%). The solution was neutralized with 2 M K2c03 (242 mL). Heptane (144 mL) was added. The two layers were separated. The aqueous layer was extracted with heptane (144 mL). The combined organic phase was washed with water (144 mL) and dried overMg504. The solution was filtered and concentrated to dryness to afford an oil product(49 g, 80%, HPLC area%: 98.22%).
80% With trifluorormethanesulfonic acid; In dichloromethane; at 20℃; for 1h; To a solution of 57 % HI (60 mL) in water (90 mL) is added propionic acid 20 (20 g). The resulting mixture is heated at 50C for 24 h. The mixture is cooled to room temperature and MTBE (100 mL) was added. The two layers were separated. The aqueous layer was extracted with MTBE (100 mL). The combined organic phase is washed with 2 M NaS203(2 x 50 mL), 5 % NaCl and dried over MgS04. The solution was filtered and concentrated to dryness to afford a beige solids product 21 (49 g, 87%). To a solution of (Z)-3-iodo-acrylic acid 21 (48 g) and t-BuOAc (140 g) in CH2CI2(144 mL, 3 vol.) was added TfOH (1.8 g). The solution is stirred at room temperature for 1 h. The reaction is deemed complete (acid: HPLC area% 20.27%). The solution is neutralized with 2 M K2CO3(242 mL). Heptane (144 mL) was added. The two layers are separated. The aqueous layer is extracted with heptane (144 mL). The combined organic phase is washed with water (144 mL) and dried over MgS04. The solution is filtered and concentrated to dryness to afford an oil product 5 (49 g, 80%, HPLC area%: 98.22%).
80% With trifluorormethanesulfonic acid; In dichloromethane; at 20℃; for 1h; To a solution of 57 % HI (60 mL) in water (90 mL) was added propynoic acid 20’ (20 g). The resulting mixture was heated at 50 C for 24 h. The mixture was cooled to room temperature and MTBE (100 mL) was added. The two layers were separated. The aqueous layer was extracted with MTBE (100 mL). The combined organic phase was washed with 2 M NaS CT, (2 x 50 mL), 5 % NaCl and dried over MgSCL. The solution was filtered and concentrated to dryness to afford a beige solids product 21’ (49 g, 87%). To a solution of (Z)-3-iodo-acrylic acid 21’ (48 g) and t-BuOAc (140 g) in CH2CI2 (144 mL, 3 vol.) was added TfOH (1.8 g). The solution was stirred at room temperature for 1 h. The reaction was deemed complete (acid: HPLC area% 20.27%). The solution was neutralized with 2 M K2CO3 (242 mL). Heptane (144 mL) was added. The two layers were separated. The aqueous layer was extracted with heptane (144 mL). The combined organic phase was washed with water (144 mL) and dried over MgSCL. The solution was filtered and concentrated to dryness to afford an oil product 5’ (49 g, 80%, HPLC area%: 98.22%).

 

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