1173883-05-0Relevant articles and documents
NHC-Mediated Stetter-Aldol and Imino-Stetter-Aldol Domino Cyclization to Naphthalen-1(2 H)-ones and Isoquinolines
Barman, Debabrata,Ghosh, Tanmoy,Show, Krishanu,Debnath, Sudipto,Ghosh, Tapas,Maiti, Dilip K.
, p. 2178 - 2182 (2021)
N-Heterocyclic carbene-catalyzed tandem Stetter-aldol reaction of phthalaldehyde and α,β-unsaturated ketimines has been developed to afford functionalized naphthalen-1(2H)-one derivatives as the formal [4+2] annulation product. Interestingly, the reaction of aldimines led to the formation of isoquinoline derivatives instead of the expected indanone derivatives as a [4+1] annulation product.
One substrate, two modes of C-H functionalization: A metal-controlled site-selectivity switch in C-H arylation reactions
Tiwari, Virendra Kumar,Kamal, Neha,Kapur, Manmohan
supporting information, p. 262 - 265 (2017/11/27)
A unique site-selectivity switch has been achieved in the ruthenium-catalyzed C-H arylation reaction of N-acetyl-1,2-dihydroisoquinolines. This metal-mediated switch is antipodal to the previous report on the palladium-mediated C-4 C-H arylation on the same substrate. Mechanistic details reveal interesting aspects of the reaction pathway, and kinetic studies bring out the difference in the modes of C-H activation adopted by the two catalytic systems.
Palladium-catalyzed, microwave-enhanced three-component synthesis of isoquinolines with aqueous ammonia
Dellacqua, Monica,Abbiati, Giorgio,Rossi, Elisabetta
scheme or table, p. 2672 - 2676 (2010/11/24)
A variety of substituted isoquinoline derivatives can be synthesized in moderate yield by a palladium-catalyzed, microwave-assisted MCR starting from o-bromoarylaldehydes, terminal alkynes, and aqueous ammonia. Georg Thieme Verlag Stuttgart New York.
Microwave-promoted synthesis of N-heterocycles by tandem imination/ annulation of γ- and δ-ketoalkynes in the presence of ammonia
Alfonsi, Maria,Dell'Acqua, Monica,Facoetti, Diego,Arcadi, Antonio,Abbiati, Giorgio,Rossi, Elisabetta
experimental part, p. 2852 - 2862 (2009/09/06)
The synthesis of 3-substituted l-methylpyrrolo[l,2-a]pyrazines and 3-substituted isoquinolines was achieved by the intramolecular cyclisation of 2-acetyl-l-propargylpyrroles and 2-alkynylbenzaldehydes, respectively, in the presence of ammonia under microwave heating. The tandem imination/annulation of 2-alkynylbenzaldehydes was easily accomplished under standard conditions, while TiCl4 was used to achieve pyrrolo[l,2-a]pyrazines. The reaction mechanism and the regioselectivity were discussed on the basis of theoretical calculations and spectroscopic data. Wiley-VCH Verlag GmbH & Co. KGaA.