Zobrazeno 1 - 10
of 24
pro vyhledávání: '"K. Chinni Mahesh"'
Autor:
A. Vijender Reddy, Yenamandra Venkateswarlu, P. Krishnaiah, K. Ravinder, Singanaboina Rajaram, K. Hara Kishore, K. Chinni Mahesh, U. S. N. Murty
Publikováno v:
Medicinal Chemistry Research. 23:343-347
∆9(15) Africanene, a medicinally important natural sesquiterpenoid has been subjected to chemical transformations to prepare aromatic, hetero aromatic, and aliphatic esters. The synthesized compounds were characterized using IR, mass, and NMR spect
Publikováno v:
Tetrahedron Letters. 49:2607-2610
An efficient method for the N-benzyloxycarbonylation of amines is described. The reaction of amines with Cbz-Cl in the ionic liquid [TPA][ l -Pro] afforded the corresponding N -Cbz derivatives in excellent yields. The method is versatile for the prep
Autor:
P. Prabhakar, M. Narasimhulu, Yenamandra Venkateswarlu, Ch. Bhujanga Rao, K. Chinni Mahesh, T. Srikanth Reddy
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 266:114-117
Silica supported perchloric acid (HClO4-SiO2) is found to be a heterogeneous recyclable catalyst for the rapid and efficient synthesis of various poly-substituted quinolines in the Friedlander condensation of 2-aminoarylketones with carbonyl compound
Autor:
M. Narasimhulu, A. Vijender Reddy, T. Srikanth Reddy, Yenamandra Venkateswarlu, K. Chinni Mahesh, S. Malla Reddy
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 264:288-292
A simple, convenient and general method has been developed for the synthesis of α-aminonitriles by a one-pot three component condensation of aldehydes, amines and trimethyl silyl cyanide in acetonitrile in the presence of a catalytic amount of La(NO
Publikováno v:
Synthetic Communications. 37:281-287
A highly selective and efficient deprotection of the N‐t‐butoxy carbonyl (N‐Boc) group on indoles, pyrroles, indazoles, and carbolines has been achieved in high yields using a catalytic amount of NaOMe as a base in dry MeOH, at ambient temperat
Publikováno v:
Tetrahedron Letters. 48:55-59
A facile and versatile method for the chemoselective N-benzyloxycarbonylation of amines has been developed by treatment with benzyloxycarbonyl chloride (Cbz–Cl) in the presence of lanthanum(III) nitrate hexahydrate under solvent-free conditions. Th
Autor:
K. Ravinder, N. Suryakiran, K. Chinni Mahesh, Yenamandra Venkateswarlu, T. Srikanth Reddy, M. Narasimhulu
Publikováno v:
Tetrahedron Letters. 47:2341-2344
Primary alcohols undergo selective and efficient tetrahydropyranylation in the presence of a catalytic amount of La(NO 3 ) 3 ·6H 2 O under solvent-free conditions.
Semi-synthesis and bio-evaluation of polybrominated diphenyl ethers from the sponge Dysidea herbacea
Autor:
K. Chinni Mahesh, Yenamandra Venkateswarlu, N. Suryakiran, J. Venkateswara Rao, D. Ramesh, P. Kavitha, M. Narasimhulu, A. Sai Krishna, T. Srikanth Reddy
Publikováno v:
Bioorganicmedicinal chemistry letters. 22(14)
The sponge Dysidea herbacea was collected from the Mandapam Coast, Tamilnadu, India. Isolated gram quantities of hydroxylated polybrominated diphenyl ether (HO-PBDE) and semi-synthesized a series of new PBDEs derivatives and tested them for antibacte
Autor:
N. Suryakiran, K. Chinni Mahesh, M. Narasimhulu, D. Ramesh, Singanaboina Rajaram, T. Srikanth Reddy, Yenamandra Venkateswarlu
Publikováno v:
ChemInform. 40
Acidic ionic liquid 1-methylimidazolium tetrafluoroborate [HMim] + [BF 4 ] ― , was successfully employed as a reusable catalyst for the reaction of furfural and secondary amines to yield 4,5-diaminocyclopent-2-enones exclusively as trans diastereom
Autor:
M. Narasimhulu, T. Srikanth Reddy, A. Sai Krishna, Yenamandra Venkateswarlu, J. Venkateswara Rao, K. Chinni Mahesh
Publikováno v:
ChemInform. 40
A total synthesis of yashabushidiol (1a), a linear diarylheptanoid having 1,3- diol system and its analogues has been achieved by alkynylation of 3-hydroxy-5-phenyl pentanal with substituted phenyl acetylenes. All the compounds have shown significant