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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1987845Generated: November 1, 2026

Benzyl crotonate, (E)- → Benzyl [7-{N-(ethoxycarbonyl)amino}-3-(3-methoxy-4-nitrobenzoyl)-2-methylindolizin-1-yl]carboxylate

https://huagongshe.com/reaction/1987845

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl crotonate, (E)-HCID 5356259—
Reactant4-[N-(ethoxycarbonyl)amino]-1-[2-(3-methoxy-4-nitrophenyl)-2-oxoethyl]pyridinium bromideHCID 86607555—
CatalystManganese oxideHCID 160959—
ProductBenzyl [7-{N-(ethoxycarbonyl)amino}-3-(3-methoxy-4-nitrobenzoyl)-2-methylindolizin-1-yl]carboxylateHCID 8660755726%

Reaction Steps

This compound is prepared according to the same method as that described in Example 47 Step B from 1.8 g (4.1 mmol) of 4-[N-(ethoxycarbonyl)amino]-1-[2-(3-methoxy-4-nitrophenyl)-2-oxoethyl]pyridinium bromide with benzyl crotonate in the presence of manganese oxide as oxidizing agent. 573 mg of a yellow powder are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07553845B2
Source datasetuspto-grants-2009_06
ORD IDord-d5ad3b8667ee4e1cb3475e35f2fcbae8
Source noteuspto-grants-2009_06