Nitric Acid and Phosphorus Pentoxide Supported on Silica Gel as a Mild and Efficient System for the Oxidation of Benzylic Alcohols under Solvent-Free Conditions.

ChemInform ◽  
2006 ◽  
Vol 37 (14) ◽  
Author(s):  
Abdol R. Hajipour ◽  
Behzad Kooshki ◽  
Arnold E. Ruoho
Keyword(s):  
Nitric Acid ◽  
Silica Gel ◽  
Phosphorus Pentoxide ◽  
Solvent Free ◽  
Efficient System ◽  
Benzylic Alcohols ◽  
Solvent Free Conditions

scholarly journals P2O5/SiO2as a New, Efficient and Reusable Catalyst for Preparation of 4,4′-Epoxydicoumarins Under Solvent-free Conditions

2011 ◽  
Vol 8 (4) ◽  
pp. 1626-1631 ◽  
Author(s):  
Liqiang Wu ◽  
Xiao Wang
Keyword(s):  
Silica Gel ◽  
Low Cost ◽  
Reaction Times ◽  
Catalytic Amount ◽  
Phosphorus Pentoxide ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Solvent Free Conditions ◽  
High Yields

An efficient solvent-free procedure for the preparation of 4,4′-epoxydicoumarins via the ondensation of 4-hydroxycoumarin with aldehydes in the presence of catalytic amount of phosphorus pentoxide/silica gel at 110°C is described. The advantages of this method are generality, high yields, short reaction times, ease of product isolation, low cost and ecologically friendly.

scholarly journals Tandem Fries Reaction–Conjugate Addition under Microwave Irradiation in Dry Media; One-pot Synthesis of Flavanones

1999 ◽  
Vol 23 (9) ◽  
pp. 574-575
Author(s):  
Firouz Matloubi Moghaddam ◽  
Mohammad Ghaffarzadeh ◽  
Seyed Hossein Abdi-Oskoui
Keyword(s):  
Microwave Irradiation ◽  
Silica Gel ◽  
Conjugate Addition ◽  
Solvent Free ◽  
Naphthalene Derivatives ◽  
One Pot ◽  
Fries Rearrangement ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Fries Reaction

An AICl3–ZnCl2 mixture supported on silica gel is found to be an efficient medium for the Fries rearrangement of acyloxybenzene or naphthalene derivatives in solvent-free conditions under microwave irradiation.

HNO3/Silica Gel Supported CAN; Oxidative Deprotection of Benzylic Tetrahydropyranyl Ethers under Solvent-Free Conditions Using Microwaves.

ChemInform ◽  
2005 ◽  
Vol 36 (36) ◽  
Author(s):  
Majid M. Heravi ◽  
Pegah Kazemian ◽  
Hossein A. Oskooie ◽  
Mitra Ghassemzadeh
Keyword(s):  
Silica Gel ◽  
Solvent Free ◽  
Solvent Free Conditions

Silica gel induced cleavage of aziridines by aromatic amines under solvent free conditions

2002 ◽  
Vol 43 (22) ◽  
pp. 3975-3976 ◽  
Author(s):  
R.Vijaya Anand ◽  
Ghanshyam Pandey ◽  
Vinod K. Singh
Keyword(s):  
Silica Gel ◽  
Aromatic Amines ◽  
Solvent Free ◽  
Solvent Free Conditions
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