Day: November 21, 2022

Bogdanov, V. S.’s team published research in Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya in | CAS: 20662-83-3

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C5H7NO, Application In Synthesis of 20662-83-3.

Bogdanov, V. S. published the artcileCarbon-13, nitrogen-14, and proton NMR spectra and effects of substituents in oxazoles, Application In Synthesis of 20662-83-3, the publication is Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya (1980), 305-16, database is CAplus.

13C NMR data were obtained for 40 oxazoles; 1H and 14N data were obtained for 6 and 11 of these, resp. The following linear correlations were made: chem. shift (δ) for C-2 with δ for C-4, δ for C-4 with δ for C-5, δ for C-2 with δ for H-2, δ for C-4 with δ for H-4, δ for C-5 with the electronegativity of the substituent at C-5, and 13C δ values for 4,5-disubstituted oxazole with those for 1,2-disubstituted benzenes. An additive method for calculating 13C δ values was tested successfully. The effect of substituents on various coupling constants was also determined

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C5H7NO, Application In Synthesis of 20662-83-3.

Referemce:
https://en.wikipedia.org/wiki/Oxazolidine,
Oxazolidine | C3H7NO – PubChem

 

Hay, Duncan A.’s team published research in Tetrahedron Letters in 52 | CAS: 20662-83-3

Tetrahedron Letters published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C5H7NO, Application In Synthesis of 20662-83-3.

Hay, Duncan A. published the artcileA flexible synthesis of C-6 and N-1 analogues of a 4-amino-1,3-dihydroimidazo[4,5-c]pyridin-2-one core, Application In Synthesis of 20662-83-3, the publication is Tetrahedron Letters (2011), 52(44), 5728-5732, database is CAplus.

A flexible route which enables access to derivatives of 4-amino-1,3-dihydroimidazo[4,5-c]pyridin-2-ones is described. Issues of selectivity, reaction safety, and low yields in original routes are overcome with the key improvements to the route, including a Negishi cross-coupling and use of a carbamate as a protecting group and intrinsic carbonyl source. The new route enables variation of C-6 and N-1 substituents.

Tetrahedron Letters published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C5H7NO, Application In Synthesis of 20662-83-3.

Referemce:
https://en.wikipedia.org/wiki/Oxazolidine,
Oxazolidine | C3H7NO – PubChem