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CAS No. : | 100-80-1 | MDL No. : | MFCD00008617 |
Formula : | C9H10 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | JZHGRUMIRATHIU-UHFFFAOYSA-N |
M.W : | 118.18 | Pubchem ID : | 7529 |
Synonyms : |
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Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P261-P301+P310-P305+P351+P338-P331 | UN#: | 1993 |
Hazard Statements: | H225-H304-H315-H319-H332-H335 | Packing Group: | Ⅲ |
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 |
---|---|---|
82% | With dibromamine-T; sodium thiosulfate; In water; acetone; at 20℃; for 2h; | General procedure: To a solution of olefin (1mmol) in acetone (3mL) and water (0.1mL), TsNBr2 (2.2mmol) was added at room temperature. After completion of reaction, sodium thiosulfate (200mg approx.) was added and the reaction mixture was stirred for another 10min. The reaction mixture was extracted with ethyl acetate, dried (Na2SO4) and concentrated. Purification of the crude product by flash chromatography on silica gel (230-400 mesh) with petroleum ether-EtOAc as eluent gave the pure product. |
With 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; water; In acetone; at 70℃; for 0.138833h; | Dissolve 5mmol (0.59g) of 3-methylstyrene in 10mL 1:1 water/acetone solution (5mL water plus 5mL acetone mixedIn homogeneous), a homogeneous solution A was obtained, which was added to the syringe pump a; 8 mmol (2.29 g) of DBH was dissolved in 10 mL of 1:1 water/acetone solution.In a solution (5 ml of water plus 5 ml of acetone mixed uniformly), a homogeneous solution B was obtained, which was added to a syringe pump b; 6 mmol (0.91 g) of DBU was added.And 6mmol (1.10g) of pentafluorophenol dissolved in 10mL of acetone (acetone) to obtain a homogeneous solution C, added to the syringe pump c; injectionThe injection flow rates of pumps a and b were both 0.3 ml/min, and the injection flow rate of syringe pump c was 0.5 ml/min; the first microchannel reactor was reversed.The volume V=5ml, the reaction time 8.33min, the second microchannel reactor reaction volume V=5ml, the reaction time is 4.55min;First and second microchannel reactor inner diameter = 0.5 mm; first microchannel reactor temperature is 70 C, second microchannel reactorThe temperature is 60 C; after two cycles of the second microchannel reactor reaction, the reaction liquid is collected and calculated by HPLC method.The product yield was 74%.Separation by column chromatography to obtain product 3i |