Novel Synthetic Methodologies. Part 120. Efficient Conjugate Addition of 1H-Indoles to Electron-Deficient Olefins Catalyzed by Silica-Supported Sodium Hydrogen Sulfate (NaHSO4×SiO2).

Biswanath Das; Nikhil Chowdhury K. Damodar; K. Ravinder Reddy

doi:10.1002/chin.200725106

Novel Synthetic Methodologies. Part 120. Efficient Conjugate Addition of 1H-Indoles to Electron-Deficient Olefins Catalyzed by Silica-Supported Sodium Hydrogen Sulfate (NaHSO4×SiO2).

ChemInform ◽

10.1002/chin.200725106 ◽

2007 ◽

Vol 38 (25) ◽

Author(s):

Biswanath Das ◽

Nikhil Chowdhury K. Damodar ◽

K. Ravinder Reddy

Keyword(s):

Conjugate Addition ◽

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Synthetic Methodologies

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Studies on Novel Synthetic Methodologies. Part 26. Simple, Efficient, and Selective Deprotection of Phenolic Methoxymethyl Ethers Using Silica-Supported Sodium Hydrogen Sulfate as a Heterogeneous Catalyst.

ChemInform ◽

10.1002/chin.200404044 ◽

2004 ◽

Vol 35 (4) ◽

Author(s):

C. Ramesh ◽

N. Ravindranath ◽

Biswanath Das

Keyword(s):

Heterogeneous Catalyst ◽

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Synthetic Methodologies

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Studies on Novel Synthetic Methodologies. Part 31. Silica-Supported Sodium Hydrogen Sulfate Catalyzed Facile Transformation of p-Hydroxybenzyl Alcohols to p-Hydroxybenzyl Ethers and Thioethers.

ChemInform ◽

10.1002/chin.200504089 ◽

2005 ◽

Vol 36 (4) ◽

Author(s):

R. Ramu ◽

N. Ravindra Nath ◽

M. R. Reddy ◽

Biswanath Das

Keyword(s):

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Synthetic Methodologies ◽

Facile Transformation

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Studies in Novel Synthetic Methodologies. Part 19. Selective Removal of N-Boc Protecting Group from Aromatic Amines Using Silica Gel-Supported Sodium Hydrogen Sulfate and HY-Zeolite as Heterogeneous Catalysts.

ChemInform ◽

10.1002/chin.200411068 ◽

2004 ◽

Vol 35 (11) ◽

Author(s):

N. Ravindranath ◽

C. Ramesh ◽

M. Ravinder Reddy ◽

Biswanath Das

Keyword(s):

Silica Gel ◽

Aromatic Amines ◽

Heterogeneous Catalysts ◽

Selective Removal ◽

Hydrogen Sulfate ◽

Protecting Group ◽

Hy Zeolite ◽

Sodium Hydrogen ◽

Synthetic Methodologies

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Studies on Novel Synthetic Methodologies. Part 43. Chemoselective Deprotection of Trityl Ethers Using Silica-Supported Sodium Hydrogen Sulfate.

ChemInform ◽

10.1002/chin.200450038 ◽

2004 ◽

Vol 35 (50) ◽

Author(s):

Biswanath Das ◽

Gurram Mahender ◽

Vooturi Sunil Kumar ◽

Nikhil Chowdhury

Keyword(s):

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Synthetic Methodologies

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Rapid, efficient and selective conjugate addition of thiols to α, β-unsaturated carbonyl compounds using silica supported sodium hydrogen sulfate under solvent-free conditions

Journal of Sulfur Chemistry ◽

10.1080/17415990801935409 ◽

2008 ◽

Vol 29 (5) ◽

pp. 489-494 ◽

Cited By ~ 5

Author(s):

Biswanath Das ◽

Avula Satya Kumar ◽

Bommena Ravikanth ◽

Kongara Damodar ◽

Martha Krishnaiah

Keyword(s):

Carbonyl Compounds ◽

Conjugate Addition ◽

Solvent Free ◽

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Solvent Free Conditions

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Studies on Novel Synthetic Methodologies. Part 25. Silica Supported Sodium Hydrogen Sulfate and Amberlyst-15: Two Efficient Heterogeneous Catalysts for Facile Synthesis of Bis- and Tris(1H-indol-3-yl)methanes from Indoles and Carbonyl Compounds.

ChemInform ◽

10.1002/chin.200334097 ◽

2003 ◽

Vol 34 (34) ◽

Author(s):

Chimmani Ramesh ◽

Joydeep Banerjee ◽

Rammohan Pal ◽

Biswanath Das

Keyword(s):

Carbonyl Compounds ◽

Heterogeneous Catalysts ◽

Hydrogen Sulfate ◽

Facile Synthesis ◽

Amberlyst 15 ◽

Sodium Hydrogen ◽

Synthetic Methodologies

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Studies on Novel Synthetic Methodologies. Part 22. A Simple, Mild and Efficient Procedure for Selective Cleavage of Prenyl Esters Using Silica-Supported Sodium Hydrogen Sulfate as a Heterogenous Catalyst.

ChemInform ◽

10.1002/chin.200319065 ◽

2003 ◽

Vol 34 (19) ◽

Author(s):

C. Ramesh ◽

G. Mahender ◽

N. Ravindranath ◽

Biswanath Das

Keyword(s):

Hydrogen Sulfate ◽

Efficient Procedure ◽

Sodium Hydrogen ◽

Heterogenous Catalyst ◽

Synthetic Methodologies

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Efficient Conjugate Addition of 1H-Indoles to Electron-Deficient Olefins Catalyzed by Silica-Supported Sodium Hydrogen Sulfate (NaHSO4 ⋅ SiO2)

Helvetica Chimica Acta ◽

10.1002/hlca.200790040 ◽

2007 ◽

Vol 90 (2) ◽

pp. 340-345 ◽

Cited By ~ 18

Author(s):

Biswanath Das ◽

Nikhil Chowdhury ◽

K. Damodar ◽

K. Ravinder Reddy

Keyword(s):

Conjugate Addition ◽

Hydrogen Sulfate ◽

Sodium Hydrogen

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A Simple and Facile Solventless Procedure for the Cyclization of 2′-Amino- and 2′-Hydroxy-chalcones Using Silica-Supported Sodium Hydrogen Sulfate as Heterogenous Catalyst.

ChemInform ◽

10.1002/chin.200717134 ◽

2007 ◽

Vol 38 (17) ◽

Author(s):

K. Hemanth Kumar ◽

P. T. Perumal

Keyword(s):

Hydrogen Sulfate ◽

Sodium Hydrogen ◽

Heterogenous Catalyst

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Sodium Hydrogen Sulfate, Fused

ACS Reagent Chemicals ◽

10.1021/acsreagents.4349 ◽

2017 ◽

Keyword(s):

Hydrogen Sulfate ◽

Sodium Hydrogen

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