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Mo-katalysierte Hydrostannylierungen
Goel, Atul; Agarwal, Nidhi; Singh, Fateh V.; Sharon, Ashoke;
Tiwari, Priti; Dixit, Manish; Pratap, Ramendra; Srivastava, Arvind K.;
Maulik, Prakas R.; Ram, Vishnu J.
Antihyperglycemic activity of 2-methyl-3,4,5-triaryl-1H-pyrroles in SLM
and STZ models. Bioorganic & Medicinal Chemistry Letters
2004, 14(5), 1089-1092.
Pratap, Ramendra;
Sil, Diptesh; Ram, Vishnu J. An innovative approach to the synthesis of
substituted benzaldehydes through carbanion induced ring transformation of
suitably functionalized 2H-pyran-2-ones. Tetrahedron Letters
2004, 45(29), 5743-5745.
Sil,
Diptesh; Sharon, Ashoke; Pratap, Ramendra; Maulik, Prakas R.; Ram, Vishnu
J. Synthesis of benzocyclobutanes through ring transformation reactions of 2H-pyran-2-ones.
Synlett 2004, 12, 2163-2164.
Pratap, Ramendra;
Sharon, Ashoke; Maulik, Prakas R.; Ram, Vishnu J. A one-pot synthesis of an
annelated[a]aza-thieno[3,2-g]naphthalenone through ring transformation
followed by photocyclization. Tetrahedron Letters 2005,
46, 85-87.
Sharon,
Ashoke; Pratap, Ramendra; Tripathi, Brajendra; Srivastava, A. K.; Maulik,
P. R.; Ram, Vishnu J. Biaryls and heterobiaryls as α-glucosidase
and protein tyrosine phosphatase inhibitors. Bioorganic & Medicinal
Chemistry Letters 2005, 15(5), 1341-1344.
Sharon,
Ashoke; Pratap, Ramendra; Maulik, Prakas R.; Ram, Vishnu J. Synthesis of
annelated[a]aza-anthracenones and thieno[3,2-g]aza-naphthalenones through ring
transformation of 2H-pyran-2-one followed by photocyclization.
Tetrahedron 2005, 61(15), 3781-3787.
Sharon,
Ashoke; Pratap, Ramendra; Tiwari, Priti; Srivastava, Arvind; Maulik, P.
R.; Ram, Vishnu J. Synthesis and in vivo antihyperglycemic activity of 5-(1H-pyrazol-3-yl)methyl-1H-tetrazoles.
Bioorg. Med. Chem. Lett. 2005, 15, 2115-2117.
Pratap, Ramendra;
Sil, Diptesh; Ram, Vishnu J. Substituent dependent regioselective synthesis of
pyranopyrandiones and 1,2-teraryls from 2H-pyran-2-ones.
Tetrahedron Letters 2005, 46(30),
5025-5027.
Sharon,
Ashoke; Pratap, Ramendra; Vatsyayan, R.; Maulik, P. R.; Roy, U.; Goel,
A.; Ram, Vishnu J. 6-Aryl-4-methylsulfanyl-2H-pyran-2-one-3-carbonitriles
as PPAR-γ activators.
Bioorganic & Medicinal Chemistry Letters 2005, 15(14),
3356-3360.
Pratap, Ramendra;;
Kumar, R.; Maulik, P.R.; Ram, Vishnu J. A non-catalytic regioselective approach
to the synthesis of (E)-stilbenes from suitably functionalized 2H-pyran-2-ones.
Tetrahedron Letters 2006, 47, 2949-2952.
Sil, D.;
Pratap, Ramendra; Kumar, R.; Maulik, P.R.; Ram, Vishnu J. Unusual
sulfanylation through ring transformation of arene-tethered 2H-pyran-2-ones
by in situ built Michael adduct Tetrahedron Letters 2006,
47, 3759 –3762.
Pratap, Ramendra;
Brijesh Kumar.; Ram, Vishnu J. Substituent induced regioselective synthesis of
1,2-teraryls and pyrano[3,4-c]pyran-4,5-diones from 2H-pyran-2-ones
Tetrahedron 2006, 62(34), 8158-8163.
Pratap, Ramendra;
Ram, Vishnu J. A regioselective synthesis of aryl substituted arylacetates
through ring transformation by ethyl levulinate Tetrahedron Letters
2006, 47, 5389-5391.
Pratap, Ramendra;
Kushwaha, S. P.; Goel, A.; Ram, V. J. An efficient synthesis of (E)-(2-arylpyrazino[1,2-a]pyridine-4-ylidene)acetonitriles
and cyanomethyl appended pyrimidines Tetrahedron Letters
2007, 48, 549-553.
Pratap, Ramendra;
Roy, A. B.; Roy Raja and Ram, V. J. A novel synthesis of aryl tethered imidazo[4,5-b]pyrazine-2-ones
through in situ ring construction and contraction Tetrahedron Letters
2007, 48, 1281-1285.
Pratap, Ramendra;
Ram, V. J. An efficient and versatile route to the synthesis of
9,10-dihydro-3-formylphenanthrenes Tetrahedron Letters
2007, 48, 1715-1719.
Pratap, Ramendra;
Ram, V. J. A non-catalytic approach to the synthesis of 5,6-dihydrobenzo[h]quinolines
Tetrahedron Letters
2007, 48, 2755-2759.
Pratap, Ramendra;
Rishi Kumar, P. R. Maulik, Ram, V. J. Versatility of 2-oxobenzo[h]chromene
for the synthesis of oxabenzo[c]chrysenes
Tetrahedron Letters
2007, 48, 3311-3314.
Pratap, Ramendra;
Ram, V. J. 2-Oxobenzo[h]Chromene: A novel Entry for the concise and
efficient synthesis of indeno[1,2-c]-phenanthrenes Tetrahedron Letters
2007, 48, 4379-4382.
Pratap, Ramendra;
Farahanullah; Raghunandan R.; Maulik P. R.; Ram, V. J. Substituent directed
regioselective synthesis of 2-oxonicotonic acids and methyl nicotinates
Tetrahedron Letters 2007,
48, 4939-4942.
Pratap, Ramendra;
Ram, V. J. 2-Oxobenzo[h]chromene: A novel entry for the synthesis
of functionalized angular polycyclic azaarenes
Tetrahedron Letters
2007, 48, 5039-5042.
Pratap, Ramendra;
Ram, V. J. An efficient and novel approach to the synthesis of
tetrahydrophenanthro[4,3-b]thiophenes Tetrahedron Letters
2007, 48, 4715-4718.
Pratap, Ramendra;
Ram, V. J. An efficient de novo synthesis of partially reduced phenanthrenes
through C-C insertion J. Org. Chem. 2007, 72, 7402-7405.
Pratap, Ramendra;
Ram, V. J.
Acetyltrimethylsilane mediated synthesis of
dihydrophenanthrenes
Tetrahedron Letters
2007, 48, 6318-6320.
Pratap, Ramendra;
Kumar, Brijesh; Ram, V. J.
An efficient substituent
dependent synthesis of congested pyridines and pyrimidines
Tetrahedron 2007, 63, 10309-10319.
Pratap, Ramendra;
Roy, A. B.; Kushwaha, S. P.; Goel, A.; Roy, Raja; Ram, V. J.
Guanidine and amidine mediated synthesis of bridgehead triazaphenalenes,
pyrimidines and pyridines through domino reactions
Tetrahedron Letters
2007, 48, 5845-5849.
Pratap, Ramendra;
Kumar Brijesh; Ram, V. J.
Synthesis of arylated highly
congested indans using a domino sequence
Tetrahedron
2007,
63, 10300-10319.
Pratap, Ramendra; Raghunandan R., Maulik P. R., Ram,
V. J.
An unusual
synthesis of tetrahydrobenzo[f]isoquinolines
Tetrahedron Letters 2007,
48, 7982-7985.
Pratap, Ramendra;
Ram, V. J.
Synthetic potential of 2-oxobenzo[h]chromene for the construction of polycyclic
azaheteroaromatics with a steroid-like skeleton
Tetrahedron Letters
2007, 48, 8547-8549.
Pratap, Ramendra;
Ram, V. J. Synthesis of partially reduced ferrocenylphenanthrenes from
2-oxobenzo[h]chromenes through C-C insertion
Tetrahedron Letters
2007, 48, 394-396.
Gupta, V. P.;
Khartad, P.; Mishra, S.; Pratap, Ramendra; Ram, V. J.
Ab
initio and
experimental studies on structure and vibrational spectra of some partially
reduced benzo[c]phenanthrenes J. Phys. Chem. 2008,
Communicated.
Pratap, Ramendra; Kazmaier, U.
Synthesis of
1-Stannylated and Iodinated 1-Chloroalkenes as Versatile Synthetic Intermediates
Synlett 2010, 3073–3077.
Published as
corresponding author
Pratap, Ramendra*;
Ram, V. J. A substituent directed regioselective synthesis of aryl/pyronyl
pendant unusual adipate and tetrahydronaphthalene Tetrahedron Letters
2008, 49, 3011-3014.