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ChemicalBook CAS DataBase List 4-Aminotetrahydropyran
38041-19-9

4-Aminotetrahydropyran synthesis

8synthesis methods

4-Aminotetrahydropyran can be synthesized from 4-cyanotetrahydropyran and sodium hydroxide solution as raw materials to synthesize 4-formamide tetrahydropyran, and then slowly add sodium hypochlorite solution to 4-formamide tetrahydropyran. Synthesized by decarboxylation.

29943-42-8 Synthesis
Tetrahydro-4H-pyran-4-one

29943-42-8
433 suppliers
$5.00/1g

-

Yield:38041-19-9 90 %Chromat.

Reaction Conditions:

with ammonium hydroxide;nickel-aluminum alloy;water at 20; for 2 h;Sonication;Green chemistry;

Steps:

Reductive Amination of Ketones in NH4OH; Cyclohexylamine; Typical Procedure
General procedure: Ni-Al alloy (200 mg) and cyclohexanone (35 μL, 0.34 mmol) were suspended in 28-30% NH4OH (3 mL) and sonicated (Branson 1510MTH ultrasonic bath) for 2 h. After the completion of the reaction, the excess alloy and solid by-products were removed by filtration. The filtrate was extracted with EtOAc (2 × 2 mL). The organic extracts were combined and dried over anhyd Na2SO4. The solvent was removed in vacuo and the crude product was purified by flash chromatography.

References:

Sch?fer, Christian;Ni?anci, Bilal;Bere, Matthew P.;Da?tan, Arif;T?r?k, Béla [Synthesis,2016,vol. 48,# 18,art. no. SS-2016-M0224-OP,p. 3127 - 3133]

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