78523-80-5Relevant academic research and scientific papers
ENANTIOSELECTIVE SYNTHESIS OF DIALKYLATED N,O-HETEROCYCLES BY PALLADIUM-CATALYZED ALLYLIC ALKYLATION
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Paragraph 0164; 0165, (2016/05/02)
This invention provides enantioenriched N,O-heterocyclic compounds with quaternary stereogenic centers and novel methods of preparing the compounds. Methods include the method for the preparation of a compound of formula (I): comprising treating a compound of formula (II): with a transition metal catalyst under alkylation conditions.
Enantioselective synthesis of dialkylated N-heterocycles by palladium-catalyzed allylic alkylation
Numajiri, Yoshitaka,Jiménez-Osés, Gonzalo,Wang, Bo,Houk,Stoltz, Brian M.
supporting information, p. 1082 - 1085 (2015/03/14)
The enantioselective synthesis of α-disubstituted N-heterocyclic carbonyl compounds has been accomplished using palladium-catalyzed allylic alkylation. These catalytic conditions enable access to various heterocycles, such as morpholinone, thiomorpholinone, oxazolidin-4-one, 1,2-oxazepan-3-one, 1,3-oxazinan-4-one, and structurally related lactams, all bearing fully substituted α-positions. Broad functional group tolerance was explored at the α-position in the morpholinone series. We demonstrate the utility of this method by performing various transformations on our useful products to readily access a number of enantioenriched compounds.
SYSTEM CONTAINING TRIMETHYLCHLOROSILANE AND A CARBONYL COMPOUND USED IN THE SYNTHESIS OF HETEROCYCLIC COMPOUNDS FROM HYDROXY- AND AMINO-ACID DERIVATIVES
Shipov, A. G.,Orlova, N. A.,Kobzareva, V. P.,Mozzhukhin, A. O.,Antipin, M. Yu.,et al.
, p. 262 - 266 (2007/10/02)
Trimethylchlorosilane is an efficient condensing agent used in the preparation of 1,3-dioxolan-4-ones, 4-oxazolidinones, 2,3-dihydro-4H-1,3-benzoxazin-4-ones, and 5-oxazolidinones from derivatives of hydroxy and amino acids and carbonyl compounds.
Photochemical Reactions of N-Alkyl-α-oxoamides
Aoyama, Hiromu,Sakamoto, Masami,Omote, Yoshimori
, p. 1357 - 1359 (2007/10/02)
Photolysis of N-alkyl-α-oxoamides gave oxazolidin-4-ones or β-lactams as major products as in the case of NN-dialkyl-α-oxoamides.The formation of cyclohexanone in the photolysis of N-cyclohexylbenzoylformamide in an aqueous acidic medium was most reasonably explained by hydrolysis of an intermediate, N-cyclohexylidenemandelamide.
