L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-
13734-34-4CC(C)(C)OC(=O)N[C@@H](Cc1ccccc1)C(=O)OZYJPUMXJBDHSIF-NSHDSACASA-N13734-34-4DTXSID90884634CHEMBL1222330Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
This chemical does not meet GHS hazard criteria for 30% (3 of 10) of reports.
Warning
H302 (30%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 10 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
VerwendenN-(tert-Butoxycarbonyl)-L-phenylalanine is used in enantioselective hydrolysis of amino acid esters. Acts as an inhibitor of gastric acid secretion.
synthetischeSodium hydroxide (4.4 g, 0.11 mol) was placed in a flask, and dissolved in water (110 mL). Phenylalanine (16.5 g, 0.1 mol) was added, the suspension was stirred until a solution was obtained, and then tert-butanol (75 mL) was added. Boc2O (22.3 g, 0.12 mol) was then added with stirring over a period of 1 h, keeping the mixture near 0 ℃. A white precipitate was produced, and at the end of the addition the pH had dropped to 7.5–8.5. The mixture was then carefully acidified by the slow, continuous addition of saturated citric acid to give the product N-tert-butoxycarbonyl-L-phenylalanine (21.5 g, 81%); mp 85℃; [a]21D = t25:5 (c = 1, ethanol).
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