Transition‐Metal‐Catalyzed, Chelation‐Assisted C− H Alkenylation and Allylation of Organic Molecules with Unactivated Alkenes

R Logeswaran, M Jeganmohan - Advanced Synthesis & …, 2022 - Wiley Online Library
Olefins are important building blocks and are widely utilized in synthetic organic chemistry.
Owing to its omnipresence and unique reactivity, the functionalization of alkenes has …

Cobalt catalyzed alkenylation/annulation reactions of alkynes via C–H activation: A review

J Bora, M Dutta, B Chetia - Tetrahedron, 2023 - Elsevier
In the area of synthetic chemistry, there are various examples of inexpensive, highly
abundant and less toxic transition-metal catalyzed inert C–H bond activation reactions …

A Ruthenium-Catalyzed Cyclization to Dihydrobenzo[c]phenanthridinone from 7-Azabenzonorbornadienes with Aryl Amides

N Aravindan, V Vinayagam, M Jeganmohan - Organic Letters, 2022 - ACS Publications
An efficient ruthenium (II)-catalyzed tandem C–C/C–N bond formation with aryl amides and
7-azabenzonorbornadienes has been developed to synthesize cis-fused dihydrobenzo [c] …

Reversal of Regioselectivity in Asymmetric C− H Bond Annulation with Bromoalkynes under Cobalt Catalysis

A Das, R Mandal, HS Ravi Sankar… - Angewandte …, 2024 - Wiley Online Library
Metal‐catalyzed asymmetric C− H bond annulation strategy offers a versatile platform,
allowing the construction of complex P‐chiral molecules through atom‐and step‐economical …

Cp*Co(III)-Catalyzed Regioselective [4 + 2]-Annulation of N-Chlorobenzamides with Vinyl Acetate/Vinyl Ketones

S Jothi Murugan, M Jeganmohan - The Journal of Organic …, 2023 - ACS Publications
An efficient and straightforward strategy for the synthesis of isoquinolones through [4+ 2]-
annulation of N-chlorobenzamides with vinyl acetate in the presence of CoCp*(III) catalyst in …

Ru(II)- or Rh(III)-Catalyzed Annulation of Aromatic/Vinylic Acids with Alkylidenecyclopropanes via C–H Activation

B Ramesh, M Jeganmohan - The Journal of Organic Chemistry, 2022 - ACS Publications
An efficient and new route for the synthesis of (E)-4-benzylideneisochroman-1-ones through
tandem cascade annulation of benzoic acids with alkylidenecyclopropanes using Ru (II) as …

Cobalt(III)-Catalyzed Regioselective [4 + 2]-Annulation of N-Chlorobenzamides with Substituted Alkenes

SK Yadav, M Jeganmohan - The Journal of Organic Chemistry, 2022 - ACS Publications
A Co (III)-catalyzed redox-neutral [4+ 2] annulation of N-chlorobenzamides/acrylamides with
substituted alkenes at ambient temperature is demonstrated. Using this protocol …

Cobalt(III)-Catalyzed Regio- and Chemoselective [4 + 2]-Annulation of N-Chlorobenzamides/Acrylamides with 1,3-Dienes at Room Temperature

B Ramesh, M Jeganmohan - The Journal of Organic Chemistry, 2022 - ACS Publications
Co (III)-catalyzed regio-and chemoselective redox-neutral C–H annulation of arylamides/
acrylamides with 1, 3-dienes is described. The present annulation reaction was well suited …

Cp*Co(III)-Catalyzed C(8)-Nucleophilic Cascade Cyclization of Quinoline N-Oxide with 1,6-Enyne

B Garai, MR Ali, R Mandal, B Sundararaju - Organic Letters, 2023 - ACS Publications
The C (8)-selective nucleophilic cascade cyclization of quinoline N-oxide with easily derived
1, 6-enyne from phenol derivatives is demonstrated. A variety of quinoline N-oxide and …

Rhodium (iii)-catalyzed annulation of 3-arylquinazolinones with alkynes via double C–H activation: an efficient route for quinolino [2, 1-b] quinazolinones

J Huang, W Chen, J Liang, Q Yang, Z Deng… - Organic Chemistry …, 2021 - pubs.rsc.org
An effective method for the synthesis of quinolino [2, 1-b] quinazolinones has been
described. The O-directing Rh (III)-catalyzed C–H activation of 3-arylquinazolinones and …