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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 244903Generated: October 26, 2026

Dibutyltin dichloride → 5-(3,3-Dimethyl-but-1-ynyl)-3-(4-[1,2,4]triazol-1-yl-cyclohexylamino)-thiophene-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/244903

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDibutyltin dichlorideHCID 12688—
ReactantPhenylsilaneHCID 12752—
ReactantMethyl 3-amino-5-(3,3-dimethylbut-1-yn-1-yl)thiophene-2-carboxylateHCID 24989346—
Reactant4-[1,2,4]Triazol-1-yl-cyclohexanoneHCID 57424093—
Product5-(3,3-Dimethyl-but-1-ynyl)-3-(4-[1,2,4]triazol-1-yl-cyclohexylamino)-thiophene-2-carboxylic acid methyl esterHCID 24988981—

Reaction Steps

Reductive amination of 3-amino-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester (0.237 g, 1.0 mmol) and 4-[1,2,4]triazol-1-yl-cyclohexanone (0.170 g, 1.0 mmol) is performed under the same conditions previously described using dibutyltin dichloride and phenylsilane to give 5-(3,3-dimethyl-but-1-ynyl)-3-(4-[1,2,4]triazol-1-yl-cyclohexylamino)-thiophene-2-carboxylic acid methyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658674B2
Source datasetuspto-grants-2014_02
ORD IDord-4aff20ed5b94445c8534c42bf8ca59bd
Source noteuspto-grants-2014_02