Related Products of 239074-29-4,Some common heterocyclic compound, 239074-29-4, name is tert-Butyl (trans-4-(hydroxymethyl)cyclohexyl)carbamate, molecular formula is C12H23NO3, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Alcohol (79.5 g, 347 mmol) was dissolved in tetrahydrofuran (800 ml). Triethylamine (72.5 ml, 520 mmol) and methanesulfonyl chloride (32.2 ml, 416 mmol) were sequentially added thereto under ice-cooling with stirring and the mixture was reacted for 1.5 hour. The reactant was poured into aqueous citric acid (citric acid monohydrate 30 g in water 500 ml) to become pH 4 and extracted with ethyl acetate. The organic layer was washed with water and dried over magnesium sulfate anhydrous. The solvent was removed under reduced pressure. The crystal deposited in the removal process was collected by filtration and washed with hexane to give mesylate (100 g). The obtained mesylate was dissolved in dimethylformamide (100 ml) and sodium azide (63.7 g, 980 mmol) was added thereto and reacted at 80 C. for 2 hours. The reactant was poured into water and extracted with ethyl acetate. The organic layer was washed with water and dried over magnesium sulfate anhydrous. The solvent was removed under reduced pressure to quantitatively give the desired Azide (the crude weight is 85.4 g).1H-NMR (DMSO-d6) delta ppm: 0.90-1.21 (m, 4H), 1.32-1.50 (m, 1H), 1.37 (s, 9H), 1.65-1.84 (m, 4H), 3.06-3.24 (m, 3H), 6.71 (d, 1H, J=8.1 Hz).
The synthetic route of 239074-29-4 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Shionogi & Co., Ltd.; US2010/273841; (2010); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics