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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 839454Generated: October 26, 2026

tert-Butyl 2-bromo-2-methylpropionate → 2-(2-t-Butoxycarbonylprop-2-yloxyimino)-2-(thien-2-yl)acetic acid

https://huagongshe.com/reaction/839454

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 2-bromo-2-methylpropionateHCID 90290—
ReactantBenethamine(1+)HCID 1549262—
Reactant2-Hydroxyimino(thien-2-yl)acetic acidHCID 73629644—
SolventEthanolHCID 702—
Product2-(2-t-Butoxycarbonylprop-2-yloxyimino)-2-(thien-2-yl)acetic acidHCID 5430003978%

Reaction Steps

The title compound was prepared from 2-hydroxyimino-2-(thien-2-yl)acetic acid (syn isomer) and t-butyl 2-bromo-2-methylpropionate, in a similar manner to that described for Preparation 5, in 78% yield as a colourless oil, and was characterised as the N-benzyl-2-phenylethylammonium salt, m.p. 201.3°-201.9° (from ethanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04095021
Source datasetuspto-grants-1978_06
ORD IDord-a60d37966a5a44a4a03264080324f276
Source noteuspto-grants-1978_06