Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 234347Generated: October 31, 2026

Trifluoroacetic acid → 2-[3,4-(Methylenedioxy)benzyl]benzo[b]thiophene

https://huagongshe.com/reaction/234347

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTriethylsilaneHCID 12052—
Reactanta-(2-Benzo[b]thienyl)-3,4-(methylenedioxy)benzyl alcoholHCID 49964046—
Product2-[3,4-(Methylenedioxy)benzyl]benzo[b]thiopheneHCID 22998407—

Reaction Steps

2-[3,4-(methylenedioxy)benzyl]benzo[b]thiophene was prepared by the method of Example 47B using α-(2-benzo[b]thienyl)-3,4-(methylenedioxy)benzyl alcohol (6.2 mmoles, 1.8 g), triethylsilane (6.8 mmoles, 1.1 ml) CH2Cl2 (50 ml) and TFA (12.4 mmoles, 0.95 ml). Recrystallization from hexanes provided 1.2 g (73%) of a light orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05594021
Source datasetuspto-grants-1997_01
ORD IDord-cda76a25380944aa84fbc2d535813e12
Source noteuspto-grants-1997_01