Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Peruparampil A. Unnikrishnan"'
Autor:
Nithya Chakingal, Peruparampil A. Unnikrishnan, M.V. Mahesh Kumar, Sreedharan Prathapan, S. Jayalekshmi, Anand B. Puthirath, Abhilash Ayyappan
Publikováno v:
Dyes and Pigments. 159:367-377
Palladium catalyzed Stille coupling reactions are extensively used for the preparation of functionalised thiophene based polymers. In addition, polycondensation via direct C-H arylation produces alternating copolymers in moderate yields. In the prese
Autor:
S. Jayalekshmi, Peruparampil A. Unnikrishnan, Sreekanth J. Varma, M.L. Ligi, A. Abhilash, Sreedharan Prathapan
Publikováno v:
Dyes and Pigments. 184:108729
Two novel, soluble, semiconducting and light emitting segmented block copolymers, termed as NPPV1 and NPPV2 are synthesized using Horner-Emmons condensation polymerization. The chromophoric groups present in the copolymers are distyrylbenzene (DSB) u
Autor:
Rakesh Natarajan, John P. Rappai, Sreedharan Prathapan, Peruparampil A. Unnikrishnan, Sandhya Radhamani
Publikováno v:
Synlett. 26:2467-2471
Starting from readily accessible nitrones and electron-deficient acetylenes, a highly efficient and versatile synthetic protocol for 3-substituted indoles has been developed.
Autor:
John P. Rappai, Rakesh Natarajan, Sreedharan Prathapan, Sandhya Radhamani, Peruparampil A. Unnikrishnan
Publikováno v:
New Journal of Chemistry. 39:5580-5588
Depending on the nature of N- and C-substituents, nitrones exhibit diverse reactivity towards electron deficient acetylenes. Observed reactions include formal 1,3-dipolar cycloaddition and nucleophilic addition reactions. Possible involvement of zwit