Carboxyl derivatives

In simple reaction conditions, the use of DMAP is explored as an easy workup and a green catalyst for the one-pot three-component synthesis ethyl 3-amino-1-aryl-1H-benzo[f]chromene-2-carboxylate derivatives.

8p tocectocec 25-05-2020 13 3   Download

Tyr235 of GTP-dependent phosphoenolpyruvate (PEP) carboxykinase is a fully invariant residue. The aromatic ring of this residue establishes an energetically favorable weak anion–quadrupole interaction with PEP carboxylate. The role of Tyr235 in catalysis was investigated via kinetic analysis of site-directed mutagenesis-derived variants.

10p vinaphone15 28-02-2013 22 2   Download

In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups. The term carbonyl can also refer to carbon monoxide as a ligand in an inorganic or organometallic complex. Other organic carbonyls are urea and the carbamates, the derivatives of acyl chlorides chloroformates and phosgene, carbonate esters, thioesters, lactones, lactams, hydroxamates, and isocyanates.

68p loc5heo 07-06-2011 122 14   Download

IUPAC names: hydrocarbon + “oic acid”. Some natural occurring acids & derivatives. From Grignard reagents. From nitriles: Have 1 more carbon as compared to the halide.

30p 3dagkhoa 28-10-2010 129 38   Download

Common names: carboxylic acid - “aldehyde” is substituted for “ic acid”. Lower priority than ester - “oxo” group. Derived names: alkyls + ketone. IUPAC names: hydrocarbon + one.

42p 3dagkhoa 28-10-2010 100 30   Download

Carbonylation is one of the most important reactions leading to C-C bond formation. Direct synthesis of carbonyl compounds with CO gives rise to carboxylic acids and their derivatives, such as esters, amides, lactones, lactams etc. The process can be represented by the simple reactions of Scheme 5.1. In general, carbonylation proceeds via activation of a C-H or a C-X bond in the olefins and halides or alcohols, respectively, followed by COinsertion into the metal-carbon bond.

17p boyminsk 10-06-2010 121 13   Download