Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 39149-80-9 | MDL No. : | MFCD00043897 |
Formula : | C7H13BrO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CVAWKJKISIPBOD-UHFFFAOYSA-N |
M.W : | 209.08 | Pubchem ID : | 545327 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* 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.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General procedure: To a 50-mL two-neck round-bottom flask equipped with a cannula were added magnesium turnings (608 mg, 25 mmol), and the flask was heated at 80 C in vacuo for 1 h. A solution of the <strong>[2051-99-2]4-isobutylphenyl bromide</strong> (426 mg, 2.0 mmol) in THF (5 mL) was added dropwise over 3 min under argon. The mixture was heated at 50 C until the reaction was initiated. Additional <strong>[2051-99-2]4-isobutylphenyl bromide</strong> (1.71 g, 8.0 mmol) in THF (11.6 mL) was then added slowly via cannula over 15 min. The reaction mixture was heated at reflux for 3 h, after which a solution of 4-isobutylphenyl magnesium bromide 5 was obtained. To a separate 50-mL Schlenk tube was added anhydrous CoBr2 (21.9mg, 0.10mmol), and the tube was heated at 50C in vacuo for 2h. After cooling to room temperature, the cyclopropane-based bisoxazoline ligand 2 (0.12mmol) in THF (3mL) was added under argon. The resulting mixture was stirred for 1h at the same temperature, with 2-bromopropanoate 6 (1mmol) being added via syringe. The mixture solution was cooled to -80C, and the prepared Grignard reagent 5 (2.8mL, 0.5M in THF, 1.4mmol) was then added over 1h via syringe. The reaction mixture was stirred for another 6h at -80C and then quenched with saturated NH4Cl solution (5mL). The aqueous phase was extracted with diethyl ether (4×10mL). The combined organic phases were dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (n-hexane/ethyl acetate 100:1). 4.4.4 (S)-tert-Butyl 2-(4-isobutylphenyl)propanoate 7d Colorless oil, 84% yield, 78:22 er. The enantiomeric ratio was determined by HPLC with a Daicel Chiralcel OJ-H column (0.3% 2-propanol in n-hexane, 0.5 mL/min, 220 nm, minor tr = 8.76 min (R), major tr = 11.17 min (S)). [alpha]D20 = +5.5 (c 1.2, CHCl3). 1H NMR (300 MHz, CDCl3) delta: 7.20-7.17 (m, 2H), 7.07 (d, J = 8.2 Hz, 2H), 3.58 (q, J = 7.2 Hz, 1H), 2.44 (d, J = 7.2 Hz, 2H), 1.89-1.80 (m, 1H), 1.43 (d, J = 7.2 Hz, 3H), 1.39 (s, 9H), 0.89 (d, J = 6.6 Hz, 6H). 13C NMR (75 MHz, CDCl3) delta: 174.0, 140.1, 138.3, 129.1, 127.0, 80.2, 46.1, 45.0, 30.1, 27.9, 22.3, 18.4. HRMS (APCI-TOF): calcd for C17H25O2 [M-H]- 261.1855, found 261.1842. |
[ 1381861-91-1 ]
tert-Butyl 3-(2-(2-bromoethoxy)ethoxy)propanoate
Similarity: 0.80
[ 23426-63-3 ]
Methyl 2-bromo-2-methylpropanoate
Similarity: 0.80
[ 1381861-91-1 ]
tert-Butyl 3-(2-(2-bromoethoxy)ethoxy)propanoate
Similarity: 0.80
[ 23426-63-3 ]
Methyl 2-bromo-2-methylpropanoate
Similarity: 0.80
[ 1381861-91-1 ]
tert-Butyl 3-(2-(2-bromoethoxy)ethoxy)propanoate
Similarity: 0.80
[ 23426-63-3 ]
Methyl 2-bromo-2-methylpropanoate
Similarity: 0.80