Sodium Hydroxide → 3-(1-Ethyl-1-methylpropyl)-5-isoxazolamine

HRID 980095

Reaction equation

HRID 980095 reaction equation
[C:1]([CH2:3][C:4]([C:6]([CH2:10][CH3:11])([CH3:9])[CH2:7][CH3:8])=O)#[N:2].Cl.[NH2:13][OH:14].[OH-].[Na+]>O>[NH2:2][C:1]1[O:14][N:13]=[C:4]([C:6]([CH2:10][CH3:11])([CH3:9])[CH2:7][CH3:8])[CH:3]=1

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 159096Hexanenitrile, 4-ethyl-4-methyl-3-oxo-HCID 443297Hydroxyamine hydrochloride

Product 1

HCID 924023-(1-Ethyl-1-methylpropyl)-5-isoxazolamine

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A 16.5 Kg portion of methyl 2-ethylbutyrate was reacted with 60 Kg of n-butyl lithium, diisopropylamine, and 19.1 Kg of methyl iodide to provide 17.4 Kg of methyl 2-ethyl-2-methylbutyrate. A 7.5 Kg portion of the ester thus formed was reacted with 3.25 Kg of acetonitrile and 5.03 g of sodium hydride in 33 liters of tetrahydrofuran to provide 1-ethyl-1-methylpropyl cyanomethyl ketone. The ketone thus formed was reacted with 4.35 Kg of hydroxylamine hydrochloride and 2.54 Kg of sodium hydroxide in 44 liters of water to provide 5.65 Kg of 5-amino-3-(1-ethyl-1-methylpropyl)isoxazole.

Sources & evidence

ORD record
ord-df866219dc064c779c5d70f5f1672c15
Source dataset
uspto-grants-1987_01
Patent number
US04636243

Linked notes

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