4295-99-2, 4-Cyanotetrahydro-4H-pyran is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,4295-99-2
A solution of tetrahydro-2H-pyran-4-carbonitrile (3.80 g, 34.2 mmol) in tetrahydrofuran (10 ml) was added dropwise over 5 min to a cold (-78 C.) solution of lithium diisopropylamine (37.5 mmol) in tetrahydrofuran (50 ml). After 30 min, a solution of 2-chloroethyl chloromethyl ether (5.00 g, 38.7 mmol) in tetrahydrofuran (10 ml) was added dropwise over 5 min and the mixture stirred for 30 min. The cooling bath was then removed and the solution was allowed to warm up to 25 C. then stirred for 1.5 h. The reaction mixture was quenched with saturated ammonium chloride and extracted with ethyl acetate. The organic fraction was dried over anhydrous magnesium sulfate and concentrated. Filtration of the residue on silica gel (elution toluene-ethyl acetate 8:2) followed by distillation in vacuo gave 6.33 g (91% yield) of the title nitrile as a clear oil: bp 90-100 C./0.2 torr (bulb to bulb distillation, air bath temperature). 1HNMR 400 MHz (CDCl3) delta (ppm): 1.74 (2H, m, CH2), 1.92 (2H, m, CH2), 3.58 (2H, s, CH2), 3.67 (2H, t, J=5.6 Hz, CH2), 3.74 (2H, dt, J=2.3 Hz and J=12.4 Hz, CH2), 3.83 (2H, t, J=5.6 Hz, CH2), 4.0 (2H, m, OCH2).
4295-99-2 4-Cyanotetrahydro-4H-pyran 11815837, aTetrahydropyrans compound, is more and more widely used in various fields.
Reference£º
Patent; Bristol-Myers Squibb Company; US2007/111984; (2007); A1;,
Tetrahydropyran – Wikipedia
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