Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2194121Generated: October 30, 2026

4-Aminobenzoic Acid → HCID 66787714, compound

https://huagongshe.com/reaction/2194121

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Aminobenzoic AcidHCID 978—
ReactantDimethylalumanylium chlorideHCID 16686359—
Reactant1-(2-Chloro-benzenesulfonyl)-4-(2-methoxy-ethyl)-piperidine-4-carboxylic acid ethyl esterHCID 66787676—
SolventHeptaneHCID 8900—
ProductHCID 66787714HCID 6678771415.1%

Reaction Steps

This material was prepared in analogy to example 1 step D) from 1-(2-chloro-benzenesulfonyl)-4-(2-methoxy-ethyl)-piperidine-4-carboxylic acid ethyl ester (3 g), dimethylaluminium chloride in heptane (1.0 molar, 34.62 ml) and 4-aminobenzoic acid (1.58 g) to give the desired 4-[8-(2-chloro-benzenesulfonyl)-1-oxo-2,8-diaza-spiro[4.5]dec-2-yl]-benzoic acid (0.522 g) as a white solid. MS (ESI): 449.1 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329904B2
Source datasetuspto-grants-2012_12
ORD IDord-c70caa6e5c75493b836d6ae7cfed82eb
Source noteuspto-grants-2012_12