Oxonium, trimethyl-, tetrafluoroborate(1-) (1:1) → 3,4-dihydro-5-methoxy-3-methyl-2-(2-propenyl)-2H-pyrrole

Participants

Role	Name	HCID	Charge
Reactant	Oxonium, trimethyl-, tetrafluoroborate(1-) (1:1)	HCID 2735153	—
Reactant	4-Methyl-5-(2-propenyl)pyrrolidin-2-one	HCID 18782103	—
Product	3,4-dihydro-5-methoxy-3-methyl-2-(2-propenyl)-2H-pyrrole	HCID 18428453	—

The product of EXAMPLE 265 is reacted with trimethyloxonium tetrafluoroborate by the method of EXAMPLE 26 to produce the title material.