Detail of "103-75-3"

CAS Number:
103-75-3
Name:
2H-Pyran,2-ethoxy-3,4-dihydro-
Superlist Name:
2-Ethoxy-3,4-dihydro-2H-pyran
Molecular Structure:
Formula:
C₇H₁₂O₂
Molecular Weight:
128.17
Synonyms:
2-Ethoxy-2,3-dihydro-4H-pyran;2-Ethoxy-2,3-dihydro-g-pyran;2-Ethoxy-3,4-dihydro-2H-pyran;2-Ethoxy-3,4-dihydropyran;3,4-Dihydro-2-ethoxy-2H-pyran;3,4-Dihydro-2-ethoxypyran;3,4-Dihydro-2H-pyran-2-yl ethyl ether;NSC 6271;
EINECS:
203-141-8
Density:
0.96 g/cm³
Boiling Point:
144.8 °C at 760 mmHg
Flash Point:
24.4 °C
Appearance:
colorless liquid
Hazard Symbols:
Xi
Risk Codes:
10-36/38
Safety:
26 Details
Transport Information:
UN 3271

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N-acyl-1,4-dihydropyridines by acid catalyzed condensations: N-acyl-1,4-dihydropyridines by acid catalyzed condensations. Foos, Joseph S.; Killian, William; Rizvi, S.In this study，103-75-3 is also used. Q. A.; Unger, Michael; Fraenkel, Gideon (Dep. 103-75-3 is the cas registry number. This chemical is also mentioned in this article. Chem., Ohio State Univ., Columbus, Ohio, USA). Tetrahedron Lett., (16), 1407-10 (English) 1978. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) The title compds. I (R = H, R1 = OEt, Me; R = Me, R1 = Me, Ph) were prepd. (42-76%) by 4-MeC6H4SO3H-catalyzed cyclocondensation of R2C(CH2CHO)2 with R1CONH2. In addn., acid-catalyzed condensation of glutaraldehyde acetal with EtO2CNH2 gave 40% I (R = H, R1 = OEt) and acid-catalyzed condensation of 3,4-dihydro-2-ethoxy-2H-pyran in the presence of H2O and EtO2CNH2 gave 42% I (R = H, R1 = OEt). ..

N-acyl-1,4-dihydropyridines by acid catalyzed condensations: N-acyl-1,4-dihydropyridines by acid catalyzed condensations. Foos, Joseph S.; Killian, William; Rizvi, S.In this study，103-75-3 is also used. Q. A.; Unger, Michael; Fraenkel, Gideon (Dep. 103-75-3 is the cas registry number. This chemical is also mentioned in this article. Chem., Ohio State Univ., Columbus, Ohio, USA). Tetrahedron Lett., (16), 1407-10 (English) 1978. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) The title compds. I (R = H, R1 = OEt, Me; R = Me, R1 = Me, Ph) were prepd. (42-76%) by 4-MeC6H4SO3H-catalyzed cyclocondensation of R2C(CH2CHO)2 with R1CONH2. In addn., acid-catalyzed condensation of glutaraldehyde acetal with EtO2CNH2 gave 40% I (R = H, R1 = OEt) and acid-catalyzed condensation of 3,4-dihydro-2-ethoxy-2H-pyran in the presence of H2O and EtO2CNH2 gave 42% I (R = H, R1 = OEt). ..