P. Gromov, and R. S. Sagitullin, Tetrahedron , 37 , 3423 (1981). View ArticleA. N. Kost, S. P. Gromov, and R. S. Sagitullin, Tetrahedron , 1981, 37 , 3423.Kost AN, Gromov SP, Sagitull RS. Pyridine ring nucleophilic recyclizations. Tetrahedron 1981; 37: 3423-54....
organic chemistry, reviewNois available for this article.doi:10.1002/chin.198204337A. N. KOSTS. P. GROMOVR. S. SAGITULLINJohn Wiley & Sons, LtdChemischer InformationsdienstKost AN, Gromov SP, Sagitull RS. Pyridine ring nucleophilic recyclizations. Tetrahedron 1981; 37: 3423-54....
Bischler-Naperalski cyclization, Carbonylation; Carbo-diimidation; Cyclization; Dehydration; Esterificaton; Indole Synthesis; Nucleophilic Substitution; Rearrangement; Silylation; Sulfonamidation; Sulfonation; Tritylation; Formylation; Carbamoylation; Phosphorylation; Lactonization; Pivaloylation; Dakin-West Reaction...
Smiles rearrangement then occurs via an intramolecular nucleophilic attack to the imido nitrogen of 3.4.4, followed by a sulfur migration-ring expansion to furnish the desired product 3.4.3. Note that the steric hindrance on the nitrogen plays a pivotal role in this method as the substrates with...
It does, however, readily undergo nucleophilic substitution, preferentially at the C-2 and also at the C-4 position (Jori et al 1983). Being a tertiary amine, pyridine reacts with alkylating agents to form quaternary salts (Santodonato et al 1985). Because of its reduced capacity to donate...
S.,RAM - 《Cheminform》 被引量: 0发表: 1995年 ChemInform Abstract: Efficient Synthesis of Piperidine Derivatives. Development of Metal Triflate-Catalyzed Diastereoselective Nucleophilic Substitution Re... Efficient synthesis of piperidine derivatives. Development of metal triflate-catalyzed diastereoselective ...
Diethyl 6-amino-5-nitropyridine-2,3-dicarboxylate was obtained by nucleophilic displacement of a corresponding 6-chloro derivative with ammonia, no details of the yield being given (EP-A 227 932). Dimethyl and diethyl 5-amino-6-methylpyridine-2,3-dicarboxylates were obtained in an involved ...
Bischler-Naperalski cyclization, Carbonylation; Carbo-diimidation; Cyclization; Dehydration; Esterificaton; Indole Synthesis; Nucleophilic Substitution; Rearrangement; Silylation; Sulfonamidation; Sulfonation; Tritylation; Formylation; Carbamoylation; Phosphorylation; Lactonization; Pivaloylation; Dakin-West Reaction...
This is probably due to the strong tendency of furan-ring-bearing electron-withdrawing substituents to undergo a nucleophilic attack at the C-5 position to form a complex mixture of furan-ring-cleavage/recyclization products. Molecules 2023, 28, 609 6 of 15 In the IR spectra of compounds 15...
AcONa O CH3 12 H3C NH O N N Ph CH3 13 H3C O HO N N N Ph CN CH3 14 Molecules 2011, 16 3727 We have previously [10] suggested that in the mechanistic pathway for the process described by Slatt [9], the mixed anhydride is formed initially and then it reacts by nucleophilic ...