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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 267776Generated: October 30, 2026

Pyridine → 3-acetoxy-3-(N-acetylisopropylaminomethyl)-7-carbethoxyamino-3,4-dihydro-2H-1,5-benzodioxepin

https://huagongshe.com/reaction/267776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantEthyl chloroformateHCID 10928—
Reactant3-acetoxy-3-(N-acetylisopropylaminomethyl)-7-amino-3,4-dihydro-2H-1,5-benzodioxepinHCID 54073177—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
Product3-acetoxy-3-(N-acetylisopropylaminomethyl)-7-carbethoxyamino-3,4-dihydro-2H-1,5-benzodioxepinHCID 53821371—

Reaction Steps

3-Acetoxy-3-N-acetylisopropylaminomethyl-7-amino-3,4-dihydro-2H-1,5-benzodioxepin (0.1 mole) from Example 86, Step B, in chloroform is treated with 0.11 mole of ethyl chloroformate and pyridine in chloroform. The mixture after stirring and heating in a water bath for several hours is diluted with water, extracted with ether, the combined ethereal extracts washed, dried and evaporated to give 3-acetoxy-3-(N-acetylisopropylaminomethyl)-7-carbethoxyamino-3,4-dihydro-2H-1,5-benzodioxepin.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03944560
Source datasetuspto-grants-1976_03
ORD IDord-6c8803a3d3b2481dac31f188b3ca1da3
Source noteuspto-grants-1976_03