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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279185Generated: October 31, 2026

Acetone Cyanohydrin → 2-Ethyl-2,5,5-trimethyl-piperazine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/2279185

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetone CyanohydrinHCID 6406—
Reactant2-Methylbutane-1,2-diamineHCID 22666853—
Reactanttert-Butyl 8,8-dimethyl-6,9-diazaspiro[4.5]decane-9-carboxylateHCID 86680337—
Product2-Ethyl-2,5,5-trimethyl-piperazine-1-carboxylic acid tert-butyl esterHCID 90013532—

Reaction Steps

2-Ethyl-2,5,5-trimethyl-piperazine-1-carboxylic acid tert-butyl ester was synthesized in analogy to 8,8-dimethyl-6,9-diaza-spiro[4.5]decane-9-carboxylic acid tert-butyl ester starting from 2-methylbutane 1,2-diamine and acetone cyanohydrin.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133181B2
Source datasetuspto-grants-2015_09
ORD IDord-e5dfccf8ca4940b798b2c586a272661b
Source noteuspto-grants-2015_09