ChemicalBook CAS DataBase List L-Tryptophan

L-Tryptophan synthesis

9synthesis methods

Product Name:L-Tryptophan
CAS Number:73-22-3
Molecular formula:C11H12N2O2
Molecular Weight:204.23

1218-34-4 Synthesis

1218-34-4
352 suppliers
$10.00/1g

73-22-3
896 suppliers
$5.00/250mg

Yield:73-22-3 98%

Reaction Conditions:

with pepsin immobilized on terephthalaldehyde functionalized chitosan magnetic nanoparticle in acetonitrile at 20; pH=2; for 48 h;

Steps:

Deacetylation of Amides

General procedure: To a solution of an amide (1 mmol) in 10 mL of acetonitrile and 10 mLof citrate buffer (pH = 2.0) was added the catalyst (100 mg). The reactionmixture was stirred at rt, and the progress of the reaction was monitored byTLC using ethyl acetate/n-hexane 50:50 as the eluent. After 48 h, the catalystswere removed and washed with HCl (0.01M). The crude residue was purifiedby preparative silica gel plate chromatography using ethyl acetate/n-hexane 50:50 as the eluent. The recovered catalyst was used for the next reaction cycleby the same procedure described above.

References:

Lakouraj, Moslem Mansour;Maashsani, Azita;Norouzian, Rafieh-Sadat;Mohadjerani, Maryam [Journal of Carbohydrate Chemistry,2015,vol. 34,# 2,p. 103 - 119]