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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1389337Generated: October 30, 2026

Sulfuric Acid → N-phenylvaline

https://huagongshe.com/reaction/1389337

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantPotassium IodideHCID 4875—
ReactantAnilineHCID 6115—
Reactantalpha-Cyano-m-phenoxybenzyl alpha-bromoisovalerateHCID 13705788—
SolventHexamethylphosphoramideHCID 12679—
ProductN-phenylvalineHCID 10867191—

Reaction Steps

To m-phenoxy-α-cyanobenzyl α-bromoisovalerate (2.0 g, 0.0052 mole) in 4 ml of HMPT, at 24°, is added aniline (1.5 g, 0.016 mole) and potassium iodide (21 mg). The reaction is stirred at 65° for 90 hours and then cooled and poured into ice-water (20 ml) plus 2 N sulfuric acid (10 ml). The reaction is worked up as in Example 4 and purified by preparative TLC to give the m-phenoxy-α-cyanobenzyl ester of N-phenylvaline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04243819
Source datasetuspto-grants-1981_01
ORD IDord-530b84e2c4544fc5b193c39cc41ecdf5
Source noteuspto-grants-1981_01