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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1995910Generated: October 26, 2026

Benzylamine → Tryptamine

https://huagongshe.com/reaction/1995910

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzylamineHCID 7504—
ReactantPotassium CarbonateHCID 11430—
Reactant7-(3-Bromopropyl)-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dioneHCID 90018—
ReactantN-Benzyl-5-benzyloxytryptamineHCID 11727997—
ReactantAluminium lithium hydrideHCID 21226445—
ProductTryptamineHCID 1150—

Reaction Steps

N-Benzyl-5-benzyloxytryptamine, which can be prepared by the procedure of Speeter and Anthony, J.A.C.S., 76, 6208 (1954) by reacting 5-benzyloxy-3-indol-glyoxylyl chloride with benzylamine and reducing the product with lithium aluminium hydride, is reacted with 3-(theophyllin-7-yl)propyl bromide in the presence of a weak base such as potassium carbonate to yield N-benzyl-5-benzyloxy-N-[3-theophyllin-7-yl)propyl]tryptamine. Debenzylation by hydrogenation in the presence of a platinum catalyst gives the desired compound. By starting from 5-acetoxy-3-indolglyoxylyl chloride instead of 5-benzylox-3-indol-glyoxylyl chloride and proceeding in analogous manner 5-acetoxy-N-[3-(theophyllin-7-yl)propyl]tryptamine is prepared. Treatment of this compound with ammonia solution to remove the acetyl group gives the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04406903
Source datasetuspto-grants-1983_09
ORD IDord-38074a6e86874bcf96b42f267715cd61
Source noteuspto-grants-1983_09