Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Kuppuswamy Nagarajan"'
Autor:
Attimogee Shivamurthy Harisha, Kuppuswamy Nagarajan, S.Saravanan, Venkat Manohar, Sajesh P. Thomas, Tayur Narasingarow Guru Row
Publikováno v:
Results in Chemistry, Vol 4, Iss , Pp 100376- (2022)
Reaction of benzaldehyde (5a) with defined quantities of ethyl cyanoacetate (6) in presence of piperidine was studied. In a neat condition, hexasubstituted cyclohexeneamine (7a) with three ester substituents was formed along with ethyl acrylate (9a);
Externí odkaz:
https://doaj.org/article/98827d30c78f4cdda762d127e50b23d0
Publikováno v:
ChemistrySelect. 6:1283-1287
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7db7591414bc15f6d11c93bf953e1c8
https://doi.org/10.1002/slct.202004478
https://doi.org/10.1002/slct.202004478
Publikováno v:
Tetrahedron Letters. 60:552-556
Two protocols for the efficient transformation of aromatic as well as aliphatic primary carboxamides to the corresponding carbamates and aromatic as well as aliphatic cyclic imides to the corresponding anthranilic acid derivatives & amino acid deriva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4625678ba3e0f3dab1ee42096140045f
https://doi.org/10.1016/j.tetlet.2019.01.025
https://doi.org/10.1016/j.tetlet.2019.01.025
Autor:
Shashiprabha, Suresh P. Nayak, K Sundarraja Rao, K Shridhara, Kuppuswamy Nagarajan, T. N. Guru Row, Sajesh P. Thomas
Publikováno v:
Journal of Chemical Sciences. 132
Attempted cyclodehydration of phenacyl mercaptoimidazole hydrobromide with acetic anhydride gave an abnormal product lacking the phenyl group. The molecular structure is confirmed using X-ray crystal structure studies. Phenacyl mercaptobenzimidazole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69e302bbcd7ab85280a91470c4415fd3
https://doi.org/10.1007/s12039-020-01824-y
https://doi.org/10.1007/s12039-020-01824-y
Publikováno v:
Organic Process Research & Development. 20:1828-1832
A novel process has been described on 100 g scale for the preparation of gabapentin lactam which is a penultimate intermediate for the preparation of gabapentin, comprising a Hofmann reaction of 1,1-cyclohexanediacetic acid monoamide using chlorinati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc44c6234bb4809548d31560da44e4b9
https://doi.org/10.1021/acs.oprd.6b00246
https://doi.org/10.1021/acs.oprd.6b00246
Publikováno v:
Tetrahedron. 72:2880-2889
Exposure of ethyl 2-cyano-3-(2-methoxy-5-nitrophenyl)acrylate 1f to triethylamine in hot ethanol resulted in the formation of the dihydro derivative 2f and vinylogue 3f in high yields. Single crystal X-ray data are provided for 3f. Similar reactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a8e7b48a5e8d35ef0b95f0b4fb6d893
https://doi.org/10.1016/j.tet.2016.03.097
https://doi.org/10.1016/j.tet.2016.03.097
Autor:
A. Harisha, Suresh P. Nayak, Guru T N Row, Sundarraja Kothapalli Rao, Kuppuswamy Nagarajan, K Shridhara, Koteppa Pari, H. Sivaramkrishnan, Pavan, K Rajendra
Publikováno v:
Journal of Chemical Sciences. 127:1977-1991
A new synthesis of the catechol-O-methyltransferase (COMT) inhibitor, entacapone (E-isomer) has been achieved under mild conditions by amine-mediated demethylation of the precursor 2-Cyano-3-(3- hydroxy-4-methoxy-5-nitrophenyl) prop-2-eneamide, where
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c04ba5247a507d9f308b7da4ffb10f6b
https://doi.org/10.1007/s12039-015-0961-4
https://doi.org/10.1007/s12039-015-0961-4
Publikováno v:
Tetrahedron Letters. 56:4541-4544
An efficient protocol for the synthesis of various substituted phenylpiperazines was developed using sulfolane as solvent. The protocol was clean, high yielding and products were obtained in high purities (⩾99%). It was also fast and convenient, as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66e5e7dbec7ccace02335444d5097fee
https://doi.org/10.1016/j.tetlet.2015.06.003
https://doi.org/10.1016/j.tetlet.2015.06.003
Publikováno v:
Tetrahedron Letters. 56:1427-1431
3-Aryl-2-propenoic acid derivatives undergo interesting reactions with hot triethylamine. Substrates like 6 having a methoxyl with a nitro in the ortho and cyanoacrylic derivatives in the para positions give O-demethylated products, for example, enta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a03b0513d4d7a32a6c9f35c495453e2e
https://doi.org/10.1016/j.tetlet.2015.01.148
https://doi.org/10.1016/j.tetlet.2015.01.148
Publikováno v:
Crystal Growth & Design. 14:5477-5485
Experimental and theoretical charge density analyses on 2,2-dibromo-2,3-dihydroinden-1-one have been carried out to quantify the topological features of a short C–Br···O halogen bond with nearly linear geometry (2.922 A, ∠C–Br···O = 172.7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62cf9a0d78089dad652614740ad80a19
https://doi.org/10.1021/cg500659c
https://doi.org/10.1021/cg500659c