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ChemicalBook CAS DataBase List PTH-L-PROLINE
29635-99-2

PTH-L-PROLINE synthesis

2synthesis methods
-

Yield:29635-99-2 90%

Reaction Conditions:

with triethylamine in water;N,N-dimethyl-formamide at 20; for 1.5 h;

Steps:

Typical experimental procedure for the preparation of amino acid thiohydantoin

General procedure: To a solution of amino acid (02 mmol) with TEA in (8:2) DMF and water (10 mL), phenylisothiocyanate (02 mmol) was added. The reaction mixture was stirred at room temperature. The progress of reaction was monitored by TLC (30% EtOAc: Hexane or 5-10% MeOH: CHCl3). The solid product was obtained after acidification with 1N HCl. Filter the solid and recrystallize with aq. EtOH to afford pure products.

References:

Jangale, Asha D.;Wagh, Yogesh B.;Tayade, Yogesh A.;Dalal, Dipak S. [Synthetic Communications,2015,vol. 45,# 16,p. 1876 - 1886] Location in patent:supporting information

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