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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 255576Generated: October 30, 2026

Thionyl Chloride → 1,2,3,6-Tetrahydro-4-phenylpyridine

https://huagongshe.com/reaction/255576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantPhosphorus tribromideHCID 24614—
Reactant2,3,4,9-tetrahydro-1h-carbazol-3-ylmethanolHCID 282365—
ReactantHCID 13491214HCID 13491214—
ReactantAluminium lithium hydrideHCID 21226445—
SolventAcetonitrileHCID 6342—
Product1,2,3,6-Tetrahydro-4-phenylpyridineHCID 82553—
ProductHCID 13326801HCID 13326801—
Product3-(Bromomethyl)-2,3,4,9-tetrahydro-1H-carbazoleHCID 13491215—

Reaction Steps

A solution of 2.19 g of 3-chloromethyl-1,2,3,4-tetrahydrocarbazole (or 2.63 g of 3-bromomethyl-1,2,3,4-tetrahydrocarbazole) (obtainable by reduction of 1,2,3,4-tetrahydrocarbazole-3-carboxylic acid with LiAlH4 to give 3-hydroxymethyl-1,2,3,4-tetrahydrocarbazole, followed by reaction with SOCl2 or PBr3) and 1.6 g of 4-phenyl-1,2,3,6-tetrahydropyridine in 10 ml of acetonitrile is stirred at 20° for 12 hours, worked up as usual and 3-(4-phenyl-1,2,3,6-tetrahydro-1-pyridylmethyl)1,2,3,4-tetrahydrocarbazole ("P") is obtained. M.p. 163°-65°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04698351
Source datasetuspto-grants-1987_10
ORD IDord-39483a14a89c45278cdd80c9de792ab1
Source noteuspto-grants-1987_10