Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Sreeletha B. Panicker"'
Autor:
Sreeletha B Panicker, Barbara Niess, Lars Ole Haustedt, Ingo V. Hartung, H. M. R. Hoffmann, Ulrike Eggert, Mike Kleinert
Publikováno v:
Tetrahedron. 59:6967-6977
The synthesis of a masked northern half of the natural product disorazole D1 and a cyclopropane analog of the masked northern half of disorazole A1 is described. The synthesis involves in both cases as key steps a Z-selective Wittig olefination and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f29159573fb8badc535789fe1bda4fa7
https://doi.org/10.1016/s0040-4020(03)00916-5
https://doi.org/10.1016/s0040-4020(03)00916-5
Publikováno v:
Research on Chemical Intermediates. 29:227-231
The bromination of cyclopropanes using potassium bromide and cerium(IV) ammonium nitrate (CAN) in a two-phase system consisting of water and dichloromethane affording 1,3-dibromides in excellent yields is reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37a848c97e537a20756f19804bc02ea0
https://doi.org/10.1163/156856703321505111
https://doi.org/10.1163/156856703321505111
Publikováno v:
Research on Chemical Intermediates. 29:213-226
Sulfonyl radicals generated by the oxidation of sodium arylsulfinates with cerium(IV) ammonium nitrate (CAN) undergo addition reaction with styrenes to give the sulfonylated products in good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e057296884eecafc87fa6576245f3714
https://doi.org/10.1163/156856703321505102
https://doi.org/10.1163/156856703321505102
Publikováno v:
Synlett. :0156-0165
As a powerful one-electron oxidant, cerium(IV) ammo- nium nitrate (CAN) is useful for a variety of oxidative transforma- tions including carbon-carbon bond formation. Recent work has also demonstrated the usefulness of CAN in carbon-heteroatom bond-f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da965ba473a24480cc112fe814bedac2
https://doi.org/10.1055/s-2003-36775
https://doi.org/10.1055/s-2003-36775
Publikováno v:
Tetrahedron. 58:3229-3234
1-Phenyl-1-cycloalkenes undergo oxidative fragmentation in presence of CAN in methanol, affording 1,n-dicarbonyl compounds as the major products along with 1,2-dimethoxycycloalkanes. The reaction under deoxygenated conditions afforded the latter in g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50c1c8c2649a32054e52dd77ae7300d5
https://doi.org/10.1016/s0040-4020(02)00261-2
https://doi.org/10.1016/s0040-4020(02)00261-2
Autor:
Lakshmi Balagopal, Mariappanadar Vairamani, Vijay Nair, Roshini Rajan, Vasu Sheeba, Sripadi Prabhakar, Sreeletha B. Panicker, Tesmol G. George
Publikováno v:
Tetrahedron. 56:2461-2467
4-Methoxystyrene 1 underwent dimerization to 1,4-diphenylbutane derivatives 5 and 6 in presence of CAN in methanol. But in ethanol the same reaction afforded a tetralone derivative along with 5 and 6. 3,4-Dimethoxystyrene 10 underwent dimerization in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b6a56416f8518c14eba7d80b48cf83f
https://doi.org/10.1016/s0040-4020(00)00054-5
https://doi.org/10.1016/s0040-4020(00)00054-5
Autor:
Vijay Nair, Jessy Mathew, Puthuparampil P. Kanakamma, Sreeletha B. Panicker, V. Sheeba, S. Zeena, Guenter K. Eigendorf
Publikováno v:
Tetrahedron Letters. 38:2191-2194
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58a11cca7dfa4eae854ed882b1cad222
https://doi.org/10.1016/s0040-4039(97)00279-7
https://doi.org/10.1016/s0040-4039(97)00279-7
Autor:
Tesmol G. George, Sreeletha B. Panicker, Roshini Rajan, Vijay Nair, Sripadi Prabhakar, Vasu Sheeba, Mariappanadar Vairamani, Lakshmi Balagopal
Publikováno v:
ChemInform. 28
4-Methoxystyrene 1 underwent dimerization to 1,4-diphenylbutane derivatives 5 and 6 in presence of CAN in methanol. But in ethanol the same reaction afforded a tetralone derivative along with 5 and 6. 3,4-Dimethoxystyrene 10 underwent dimerization in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6ca02e7b3475110303c0db1c4ca516a
https://doi.org/10.1002/chin.199726115
https://doi.org/10.1002/chin.199726115
Autor:
Sreeletha B. Panicker, Vijay Nair
Publikováno v:
ChemInform. 30
Phenylcycloalkenes undergo facile oxidative fragmentation in presence of CAN in methanol giving ketoacetals of 1,n-dicarbonyl compounds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3ab78471cb27ea20be9c90c5644b737
https://doi.org/10.1002/chin.199917093
https://doi.org/10.1002/chin.199917093
Publikováno v:
ChemInform. 30
An easy method for the conversion of arenes to aryl thiocyanates in high yields as illustrated by the formation of 3-thiocyanato indole from indole in quantitative yield is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66724f3720af0156e515539d4e3a42df
https://doi.org/10.1002/chin.199921098
https://doi.org/10.1002/chin.199921098