Detail of "1492-15-5"

CAS Number:
1492-15-5
Name:
L-Valine, N-acetyl-,methyl ester
Molecular Structure:
Formula:
C₈H₁₅NO₃
Molecular Weight:
173.21
Synonyms:
Valine,N-acetyl-, methyl ester, L- (8CI);L-N-Acetylvaline methyl ester;Methyl N-acetyl-L-valinate;N-Acetyl-L-valine methyl ester;N-Acetylvaline methyl ester;
Density:
1.014 g/cm³
Boiling Point:
275.4 °C at 760 mmHg
Flash Point:
120.4 °C

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Regioselective chlorination of N-benzoylvaline methyl ester: Regioselective chlorination of N-benzoylvaline methyl ester. Easton, Christopher J.; Bowman, Nigel J. (Dep. Chem., Univ. Canterbury, Christchurch, N. Z.). J. Chem. Soc., Chem. Commun., (21), 1193-4 (English) 1983. CODEN: JCCCAT. ISSN: 0022-4936. 1492-15-5 and 88595-16-8 which are cas registry numbers of substances are two of reagents here. DOCUMENT TYPE: Journal CA Section: 34 (Amino Acids, Peptides, and Proteins) Section cross-reference(s): 22 Chlorination of Me2CHCH(CO2Me)NHCOR (I; R = Ph, Me) with SO2Cl and (BzO)2 in refluxing CCl4 under N for 0.5 h gave 35-40% Me2CClCH(CO2Me)NHCOR and 15-20% ClCH2CHMeCH(CO2Me)NHCOR. The results show 8-9:1 preference for b-C-H bond homolysis. The extent that I can be considered models for the regiospecific H-atom abstraction in penicillin biosynthesis is discussed. .

2-Alkoxy-2-acetaminocarboxylic acids and esters: 2-Alkoxy-2-acetaminocarboxylic acids and esters. Schmidt, Ulrich; Poisel, Hans; Wagner, Hans; Maierhofer, Alfred (Deutsche Gold- und Silber-Scheideanstalt vorm. Roessler, Ger.). Ger. 1492-15-5 and 57110-14-2 are cas registry numbers. These chemicals are also mentioned in this article. Offen. DE 2536513 24 Feb 1977, 11 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C101-30. APPLICATION: DE 75-2536513 16 Aug 1975. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 34 RR1CHC(OMe)(NHAc)CO2Me (I; R = Me, Et, Me2CH, or Ph; R1 = H or Me), which are intermediates in the prepn. of the corresponding 2-oxo esters and carboxylic acids, were prepd. by treating RR1CHCH(NHAc)CO2Me with Me3COCl, then with Na and MeOH. Thus, Me2CHCH(NHAc)CO2Me treated with Me3COCl, then with Na and MeOH gave 80% I (R = R1 = Me), which was hydrolyzed by 10% HCl to give Me2CHCOCO2H. .