Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Carlos Perez-Balado"'
Publikováno v:
The Journal of Organic Chemistry. 75:3037-3046
Carbon dioxide can be used as a convenient carbonylating agent in the synthesis of 2-oxazolidinones, 2-oxazinones, and cyclic ureas. The transient carbamate anion generated by treating a primary or secondary amine group in basic media can be activate
Autor:
Wim Albert Alex Aelterman, Dominic Ormerod, Albert Willemsens, Carlos Perez-Balado, Narda Mertens
Publikováno v:
Organic Process Research & Development. 11:237-240
A practical and scaleable synthesis of 2-chloro-5-(pyridin-2-yl) pyrimidine, an intermediate in the synthesis of a selective PDE-V inhibitor, was developed. A Negishi cross-coupling between the in situ prepared 2-pyridylzinc chloride and 5-iodo-2-chl
Autor:
Carlos Perez‐Balado, István E. Markó
Publikováno v:
Tetrahedron. 62:2331-2349
syn-Hydroalumination of 2,4,6-triisopropylphenylselanyl-1-alkynes with DIBAL-H followed by AI/I exchange with 1, afforded exclusively (E)-1-iodo-1-selenoalkenes in good yields. 1-Iodo-1-selenopropene 10 proved to be a convenient 1.1 dianion equivalen
Autor:
Carlos Perez‐Balado, István E. Markó
Publikováno v:
Tetrahedron Letters. 46:4887-4890
Racemic tetrahydropyran 3 was efficiently synthesised from allylsilane 6 and aldehyde 7 via an intramolecular Sakurai cyclisation. In a single step, the relative configuration of three chiral centres was established. Allylsilane 6 was readily assembl
Autor:
Koen De Smet, Dominic Ormerod, Tom Govaerts, Dominique Depré, Inge Schorpion, Andras Horvath, and Dirk Van den Heuvel, Carlos Perez-Balado
Publikováno v:
Organic Process Research & Development. 9:356-359
In-line FTIR was applied as a suitable PAT (process analytical technology) to monitor and control the enolate formation step in the one-carbon homologation process of a 4-methylcoumarin with chloromethyl pivalate. The techniques to determine the endp
Publikováno v:
ChemInform. 42
The condensation of carbamoyl nitroso compounds, obtained by oxidation of N-hydroxyureas, with amines unexpectedly afforded semicarbazones (aka carbamoyl hydrazones). Although the substitution of the nitrosyl moiety might compete to afford the corres
Publikováno v:
Organic letters. 13(7)
The condensation of carbamoyl nitroso compounds, obtained by oxidation of N-hydroxyureas, with amines unexpectedly afforded semicarbazones (aka carbamoyl hydrazones). Although the substitution of the nitrosyl moiety might compete to afford the corres
Publikováno v:
ChemInform. 42
Treatment of carbamoyl azides with hyrdroxylamine allows a new and convenient access to hydroxyureas.
Publikováno v:
The Journal of organic chemistry. 75(23)
The carbamoylating agents carbamoyl azides and carbamoyl cyanides (aka cyanoformamides) react with hydroxylamine in different ways, leading in the first case to N-hydroxyureas and, in the case of carbamoyl cyanides, to carbamoyl amidoxime derivatives
Publikováno v:
ChemInform. 41
Carbon dioxide can be used as a convenient carbonylating agent in the synthesis of 2-oxazolidinones, 2-oxazinones, and cyclic ureas. The transient carbamate anion generated by treating a primary or secondary amine group in basic media can be activate