Results 191 to 200 of about 39,305 (203)

Nickel Nanoparticles as Semiheterogeneous Catalyst for One-Pot, Three-Component Synthesis of 2-Amino-4H-pyrans and Pyran Annulated Heterocyclic Moieties

Synthetic Communications, 2013
Jitender M Khurana
exaly  

A heterogeneous strong basic Mg/La mixed oxide catalyst for efficient synthesis of polyfunctionalized pyrans

Tetrahedron Letters, 2008
N Seshu Babu, Nayeem Pasha, P S Sai Prasad   +2 more
exaly  

The reaction of di- and tribromotetrahydro-4H-pyran-4-ones with bases

The Journal of Organic Chemistry, 1977
Kikumasa Sato, Masao Ohashi, Eiichi Aoki, Yasushi Murai   +3 more
openaire   +1 more source

Clean Synthesis of Compounds Containing Two 4H‐Pyrans or Two Tetraketones in Aqueous Media

Synthetic Communications, 2005
Tong-Shou Jin, Li-Bin Liu
exaly  

Green Synthetic Approaches for Biologically Relevant 2-amino-4H-pyrans and 2-amino-4H-pyran-Annulated Heterocycles in Aqueous Media∗

2015
openaire   +1 more source

A highly efficacious method for the synthesis of spiro-4H-pyran and 4H-pyran derivatives using BQC as the catalyst and investigating on their in vitro antibacterial activity

Research on Chemical Intermediates
Mahdiye Ghasemi, Narges Seyedi, Farhad Shirini, Bahman Sharifzaheh   +3 more
openaire   +1 more source

Synthesis and antimicrobial activity of substituted 2,3-dihydro-4H-pyrans

Pharmaceutical Chemistry Journal, 1988
L. G. Stepanova, N. A. Keiko, T. N. Malkova, A. G. Leont'eva, T. Ya. Pushechkina, M. G. Voronkov   +5 more
openaire   +1 more source

Screening of a library of 4-aryl/heteroaryl-4H-fused pyrans for xanthine oxidase inhibition: synthesis, biological evaluation and docking studies

Medicinal Chemistry Research, 2015
Ramandeep Kaur, Sahil Sharma, Samir Mehndiratta   +2 more
exaly  

SnCl2/nano SiO2: A green and reusable heterogeneous catalyst for the synthesis of polyfunctionalized 4H-pyrans

Chinese Chemical Letters, 2013
Javad Safaei-Ghomi, Raheleh Teymuri, Hossein Shahbazi-Alavi   +2 more
exaly  

Ce(SO4)2·4H2O as a Recyclable Catalyst for an Efficient, Simple, and Clean Synthesis of 4H-Benzo[b]pyrans

Phosphorus, Sulfur and Silicon and the Related Elements, 2009
Mohammad Reza Islami, Elaheh Mosaddegh
exaly