The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 6-Methylnicotinic acid(SMILESS: O=C(O)C1=CN=C(C)C=C1,cas:3222-47-7) is researched.Application In Synthesis of Methyl 5-fluoro-3-pyridinecarboxylate. The article 《Chiral Cobalt(III) Tris(1,2-diamine) Catalysts That Incorporate Nitrogenous Base Containing Anions for the Bifunctional Activation of Nucleophiles and Electrophiles in Enantioselective Addition Reactions》 in relation to this compound, is published in ACS Catalysis. Let’s take a look at the latest research on this compound (cas:3222-47-7).
Here, The lipophilic diastereomeric cobalt complexes Λ or Δ-[Co((S,S)-dpen)3]3+ 2Cl-BArf- (Λ or Δ-(S,S)-23+ 2Cl-BArf-; dpen/BArf- = 1,2-diphenylethylenediamine/B(3,5-C6H3(CF3)2)4-) ,salts of nicotinates, isonicotinates, related sulfonates, and N,N-dimethylaminobenzoate were applied addition reactions. The 6-chloronicotinate salt gaves slower rates and lower ee values, and the 6-aminonicotinate salt gave faster rates and higher ee values. The 6-Me, 2-methoxy, and unsubstituted analogs afforded intermediate results. The 6-aminonicotinate catalyst was applied to additions of di-Me malonate to aryl-substituted nitroolefins and additions of 1,3-dicarbonyl compounds to di-t-Bu azodicarboxylate, with average yields/ee values of 90%/85% and 94%/77%, resp. The authors were unaware of other ionic catalysts for which Bronsted bases was productively incorporated into the anions, which were seldom if ever purposefully functionalized in any manner.
In addition to the literature in the link below, there is a lot of literature about this compound(6-Methylnicotinic acid)Quality Control of 6-Methylnicotinic acid, illustrating the importance and wide applicability of this compound(3222-47-7).
Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics