Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Sunil Kumar Kandappa"'
Uncovering New Excited State Photochemical Reactivity by Altering the Course of the De Mayo Reaction
Publikováno v:
Journal of the American Chemical Society. 143:3677-3681
An unprecedented and previously unknown photochemical reactivity of 1,3-dicarbonyl compounds is observed with amino-alkenes leading to dihydropyrans. This novel photochemical reactivity changes the established paradigm related to the De Mayo reaction
Autor:
Ravichandranath Singathi, Angel Ugrinov, Sunil Kumar Kandappa, Lakshmy Kannadi Valloli, Elango Kumarasamy, Jayaraman Sivaguru
Publikováno v:
Photochemistry and photobiologyREFERENCES. 97(6)
Photoreaction of enamides tethered to a phenyl ketone leads to either [3+2]-photocycloaddition or Paterno-Buchi reaction. This divergence in chemical reactivity originating from the same excited state was dependent on the reaction temperature. At low
Publikováno v:
Journal of the American Chemical Society. 141:11315-11321
Regiodivergent photocyclization of dearomatized acylphloroglucinol substrates has been developed to produce type A polycyclic polyprenylated acylphloroglucinol (PPAP) derivatives using an excited-state intramolecular proton transfer (ESIPT) process.
Autor:
Jayachandran Parthiban, Sunil Kumar Kandappa, Jayaraman Sivaguru, Sapna Ahuja, Lakshmy Kannadi Valloli
Publikováno v:
Chemical Society reviews. 50(3)
This review highlights the excited state characteristics of imines and processes that govern their photochemical and photophysical properties. This review examines the pathways for deactivation and types of photochemical reactions that originate from
Autor:
Akila Iyer, Anthony Clay, Anoklase Jean-Luc Ayitou, Sunil Kumar Kandappa, Elango Kumarasamy, Raghavachary Raghunathan, Nandini Vallavoju, Jayaraman Sivaguru
Publikováno v:
Accounts of Chemical Research. 49:2713-2724
Photochemical transformations are a powerful tool in organic synthesis to access structurally complex and diverse synthetic building blocks. However, this great potential remains untapped in the mainstream synthetic community due to the challenges as
Autor:
Sunil Kumar Kandappa, Jayaraman Sivaguru, Elango Kumarasamy, Raghavachary Raghunathan, Steffen Jockusch
Publikováno v:
Angewandte Chemie International Edition. 56
Autor:
Elango Kumarasamy, Sunil Kumar Kandappa, Ramya Raghunathan, Steffen Jockusch, Jayaraman Sivaguru
Publikováno v:
Angewandte Chemie. 129
Autor:
Sunil Kumar Kandappa, Jayaraman Sivaguru, A. Sreenithya, Elango Kumarasamy, Raghavan B. Sunoj, Steffen Jockusch, Raghavachary Raghunathan
Publikováno v:
IndraStra Global.
A complementary strategy of utilizing pi pi* excited state of alkene instead of n pi* excited state of the carbonyl chromophore in a "transposed Paterno-Buchi" reaction is evaluated with atropisomeric enamides as the model system. Based on photophysi
Autor:
K. S. Narayan, Safa Shoaee, Sunil Kumar Kandappa, Stoichko D. Dimitrov, Ravichandran Shivanna, Sridhar Rajaram, James R. Durrant
Publikováno v:
Energy Environ. Sci.. 7:435-441
The origin of high current density in efficient non-fullerene based bulk heterojunction (BHJ) organic solar cells employing a non-planar perylene dimer (TP) as an electron acceptor and a thiophene based donor polymer PBDTTT-CT is investigated using e
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 382:111883
Chiral oxazolidinone based hydrazides undergo efficient cross [2 + 2]-photocycloaddition upon visible light illumination. Oxazolidinone functionality acted as an energy harvesting photo-auxiliary. The cross [2 + 2]-photocycloaddition proceeded effici