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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 728273Generated: October 25, 2026

Water → 4-Amino-4-[1-(4-chlorophenyl)cyclobutyl]-2-methylbutan-2-ol maleate

https://huagongshe.com/reaction/728273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMaleic AcidHCID 444266—
ReactantSodium borohydrideHCID 4311764—
Reactant1-[1-(4-Chlorophenyl)cyclobutyl]-3-hydroxy-3-methylbutan-1-one oximeHCID 86743936—
CatalystMolybdic acidHCID 82208—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
Product4-Amino-4-[1-(4-chlorophenyl)cyclobutyl]-2-methylbutan-2-ol maleateHCID 67945541—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 1-[1-(4-chlorophenyl)cyclobutyl]-3-hydroxy-3-methylbutan-1-one oxime (2 g) in methanol (70 ml) was cooled to -10° C. and molybdic acid (1.67 g) added with stirring. Sodium borohydride (2.7 g) was added portionwise. The temperature of the reaction mixture was maintained at 0° C. for 21/2 hours and then water (200 ml) was added. The reaction mixture was extracted with ether, the extract filtered, and the filtrate washed with water and dried. Removal of the solvents yielded an oil which was dissolved in ether. A solution of maleic acid in ether was added and a gum was formed which solidified to give 4-amino-4-[1-(4-chlorophenyl)cyclobutyl]-2-methylbutan-2-ol maleate (m.p. 139°-144° C. (dec)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05047432
Source datasetuspto-grants-1991_09
ORD IDord-f60cd1d7155c459eab08064226917a22
Source noteuspto-grants-1991_09