Recent synthetic methodologies for imidazo [1, 5-a] pyridines and related heterocycles

MR Reddy, CM Darapaneni, RD Patil… - Organic & Biomolecular …, 2022 - pubs.rsc.org
Imidazo [1, 5-a] pyridine is a significant structural component of a large number of
agrochemicals and pharmaceuticals. The synthesis of imidazo [1, 5-a] pyridine has been a …

Recent Advances in the Synthesis of 5‐Membered N‐Heterocycles via Rhodium Catalysed Cascade Reactions

DR Mishra, BS Panda, S Nayak, J Panda… - …, 2022 - Wiley Online Library
Five membered N‐heterocycles are significant targets in organic synthesis because of their
ubiquitous existence in bioactive natural products and pharmaceuticals. Over the past …

Visible-light-induced photocatalytic oxytrifluoromethylation of N-allylamides for the synthesis of CF 3-containing oxazolines and benzoxazines

QH Deng, JR Chen, Q Wei, QQ Zhao, LQ Lu… - Chemical …, 2015 - pubs.rsc.org
Visible-light-induced photocatalytic oxytrifluoromethylation of N -allylamides for the synthesis
of CF 3 -containing oxazolines and benzoxazines - Chemical Communications (RSC …

Palladium-catalyzed carbene migratory insertion/carbonylation cascade reaction: synthesis of 2-indolones with a C3 all-carbon quaternary center

M Cheng, XY Huang, F Yang, DM Zhao, K Ji… - Organic …, 2022 - ACS Publications
An attractive palladium-catalyzed three-component reaction of ortho-amino aryl diazo esters,
allyl carboxylates, and carbon monoxide (CO) has been developed. This catalytic system …

Transition-metal-free synthesis of trifluoromethylated benzoxazines via a visible-light-promoted tandem difunctionalization of o-vinylanilides with …

P Natarajan, D Chuskit - New Journal of Chemistry, 2022 - pubs.rsc.org
9, 10-Phenanthrenedione (PQ) visible-light photocatalysis for the synthesis of a series of
trifluoromethylated benzoxazines in good to excellent yields has been developed by using N …

Synthesis of functionalized benzoxazines by copper-catalyzed C (sp3)–H bond functionalization of acetonitrile with olefinic amides

XQ Chu, XP Xu, H Meng, SJ Ji - RSC advances, 2015 - pubs.rsc.org
A copper-mediated oxycyanomethylation reaction of olefinic amides with acetonitrile was
developed for the synthesis of important benzoxazine derivatives. The reactions involve the …

Persulfate-activated charcoal mixture: an efficient oxidant for the synthesis of sulfonated benzo [d][1, 3] oxazines from N-(2-vinylphenyl) amides and thiols in aqueous …

P Natarajan, D Chuskit - RSC advances, 2021 - pubs.rsc.org
A series of 2, 4-aryl-4-((arylsulfonyl) methyl)-4H-benzo [d][1, 3] oxazines in good to excellent
yields have directly been obtained from N-(2-vinylphenyl) amides and thiols by employing a …

Progress in intermolecular and intramolecular reactions of thioamides with diazo compounds and azides

V Bakulev, Y Shafran, W Dehaen - Tetrahedron Letters, 2019 - Elsevier
Reactions of thioamides with nitrogen-rich 1, 3-dipoles, diazo compounds and azides, have
been known for long time already. However in recent years introduction of catalysts of …

Iodine-mediated synthesis of indazolo-quinazolinones via a multi-component reaction

J Palaniraja, SM Roopan - RSC Advances, 2015 - pubs.rsc.org
We report an expeditious synthesis of selected indazolo-quninazolinone derivatives via an
iodine-mediated multi-component reaction (MCR). The MCR involved an in situ generation …

Thioisomünchnones versus Acrylamides via Copper-Catalyzed Reaction of Thioamides with Diazocarbonyl Compounds

VG Ilkin, VO Filimonov, EA Seliverstova… - The Journal of …, 2022 - ACS Publications
A novel carbenoid-mediated approach to thioisomünchnones was developed by
intermolecular copper-catalyzed reactions of diazoacetamides with aromatic and …