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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842738Generated: October 25, 2026

tert-Butyl 5-bromothiophene-2-carboxylate → 5-(3-Benzyloxycarbonylamino-prop-1-ynyl)-thiophene-2-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/842738

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 5-bromothiophene-2-carboxylateHCID 10912335—
ReactantBenzyl prop-2-yn-1-ylcarbamateHCID 11137906—
Product5-(3-Benzyloxycarbonylamino-prop-1-ynyl)-thiophene-2-carboxylic acid tert-butyl esterHCID 54528964—

Reaction Steps

The title compound of Step B was prepared from prop-2-ynyl-carbamic acid benzyl ester and 5-bromo-thiophene-2-carboxylic acid tert-butyl ester in an analagous manner to Step A of Preparation 2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06376502B1
Source datasetuspto-grants-2002_04
ORD IDord-cf685f3ea09c482aa35952ad6d707ee5
Source noteuspto-grants-2002_04