Detail of "57508-48-2"

CAS Number:
57508-48-2
Name:
Propanoic acid,3-amino-3-imino-, ethyl ester, hydrochloride (1:1)
Superlist Name:
3-Amino-3-iminopropanoic acid ethyl ester hydrochloride
Molecular Structure:
Formula:
C₅H₁₀N₂O₂^.HCl
Molecular Weight:
166.61
Synonyms:
Aceticacid, amidino-, ethyl ester, hydrochloride (7CI);Propanoic acid, 3-amino-3-imino-,ethyl ester, monohydrochloride (9CI);(Ethoxycarbonyl)acetamidinemonohydrochloride;Carbamimidoylacetic acid ethyl ester hydrochloride;Ethyl3-amino-3-iminopropanoate hydrochloride;Ethyl amidinoacetate hydrochloride;
Boiling Point:
237.9 °C at 760 mmHg
Flash Point:
97.7 °C

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Reactions of 4-oxo-4H-chromene-3-carbaldehyde, II: Reactions of 4-oxo-4H-chromene-3-carbaldehyde, II. Syntheses of heterocycles with 4-oxo-4H-chromene-3-carbaldehyde. Petersen, Uwe; Heitzer, Helmut (Wiss. Hauptlab.In this study，57508-48-2 is also used., Bayer A.-G., Leverkusen, Ger.). Justus Liebigs Ann. Chem., (9), 1663-73 (German) 1976. CODEN: JLACBF. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 27 Chromenecarboxaldehydes I (R = H, 6-Cl, 7-, 8-Me) cyclized with amidines H2NCR1:NH [R1 = Me, CCl3, CH2Ph, 3,4,5-(MeO)3C6H2, 4-pyridyl, NH2, 1-pyrrolidinyl, morpholino, 4-methyl-1-piperidinyl, SMe, OMe, etc.] 3 hr in aq. NaOH at 70.degree. to give 10-97% benzopyranopyrimidines II. Oxidn. of II (R = H, R1 = NH2, 1-pyrrolidinyl, SMe; R = 8-Me, R1 = SMe) gave 27-47% the corresponding benzopyranopyrimidinones III. I (R = H) and H2NC(:NH)CH2CO2Et treated as for II gave 90% IV [X = C(CO2Et), X1 = N or X = N, X1 = C(CO2Et)]. Pyrazoles V (R = H, 4-Me, 5-OMe, 5-Cl; R1 = H, Ph, 4-ClC6H4, 2-benzimidazolyl, 2-benzothiazolyl) and hydrazones VI (R = H, 6-OMe, 7-Me; R1 = Ph, 4-ClC6H4, 3-O2NC6H4, 4-H2NSO2C6H4, 2-pyrimidinyl) were prepd. from I and H2NNHR1 in NaOH-EtOH or in pyridine. .