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CAS No. : | 1048976-83-5 | MDL No. : | MFCD11501654 |
Formula : | C18H26BNO2 | Boiling Point : | No data available |
Linear Structure Formula : | C6H5CH2NC5H7BO2C2(CH3)4 | InChI Key : | SBZWAVVCJBBNSM-UHFFFAOYSA-N |
M.W : | 299.22 | Pubchem ID : | 49759214 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | |
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 |
---|---|---|
68% | With copper(I) oxide; 1,3-bis-(diphenylphosphino)propane; lithium tert-butoxide; In N,N-dimethyl-formamide; at 45 - 55℃;Inert atmosphere; | Under nitrogen protection, in the reaction bottle,N-Benzyl-1,2,5,6-tetrahydropyridine-4-bromo (25.2 g, 0.1 mol),Boronic acid pinacol ester (30.5g, 0.12mol),Cuprous oxide (1.43g, 0.01mol),1,3-bis(diphenylphosphino)propane (8.25 g, 0.02 mol),Lithium tert-butoxide (17.6 g, 0.22 mol) was dissolved in N,N-dimethylformamide (130 g), and the reaction was stirred at a temperature of 45 C to 55 C;The reaction mixture was filtered through celite, and the filter cake was rinsed with toluene (50 g).The filtrate was diluted with toluene (50 g) and the filtrate was washed with water (100 g).Layered, GC detected organic layer without N, N-dimethylformamide,The organic layer was washed with saturated brine (100 g) and evaporated to dryness.Add heptane / ethanol = 3:1 beating,After filtration, 20.3 g of an off-white solid N-benzyl-1,2,5,6-tetrahydropyridine-4-boronic acid pinacol ester was obtained, HPLC: 99.6%, yield 68%. |
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