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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1375356Generated: October 31, 2026

Benzyl Alcohol → benzyl (2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-1-yl)acetate

https://huagongshe.com/reaction/1375356

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl AlcoholHCID 244—
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantEthyl acetate hexaneHCID 21226206—
Reactant(2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-1-yl)acetic acidHCID 69427552—
SolventTolueneHCID 1140—
Productbenzyl (2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-1-yl)acetateHCID 8660239092%

Reaction Steps

(2,4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-1-yl)acetic acid (8.0 g, 25.78 mM) and benzyl alcohol (3.35 g, 31 mM) were dissolved in 200 ml of toluene and 0.5 g of p-toluenesulfonic acid were added and resulting mixture was refluxed until TLC (Hexane/AcOEt 8/12) showed completion of reaction. Organic layer was washed 3 times with sodium bicarbonate solution, dried and toluene evaporated providing 9.5 g of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07169773B2
Source datasetuspto-grants-2007_01
ORD IDord-62f4f3f0b99a4184aa66847338d75331
Source noteuspto-grants-2007_01