Results 171 to 180 of about 14,631 (192)

Sodium selenate catalyzed simple and efficient synthesis of tetrahydro benzo[b]pyran derivatives

Catalysis Communications, 2008
Rahim Hekmatshoar, Khadijeh Bakhtiari
exaly  

2H-Pyran-2-ones and their annelated analogs as multifaceted building blocks for the fabrication of diverse heterocycles

Tetrahedron, 2017
Ramendra Pratap
exaly  

A novel synthetic approach to pyran-2,4-dione scaffold production: Microwave-assisted dimerization, cyclization, and expeditious regioselective conversion into β-enamino-pyran-2,4-diones

Tetrahedron Letters, 2020
Ahmed A M Sarhan, Matti Haukka, Assem Barakat   +2 more
exaly  

Thiourea dioxide: An efficient and reusable organocatalyst for the rapid one-pot synthesis of pyrano[4,3-b]pyran derivatives in water

Chinese Journal of Catalysis, 2014
Majid Ghashang, S Sheik Mansoor, Krishnamoorthy Aswin   +2 more
exaly  

Silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (SB-DBU)Cl as a highly efficient, heterogeneous and recyclable silica-supported ionic liquid catalyst for the synthesis of benzo[b]pyran, bis(benzo[b]pyran) and spiro-pyran derivatives

Journal of Molecular Catalysis A, 2013
Alireza Hasaninejad, Abdolkarim Zare, Mohammad Mahdi Doroodmand   +2 more
exaly  

Asymmetric Epoxide Cyclisation Route to the F-pyran Fragment of the Altohyrtins and Key Aldol Studies

Tetrahedron, 2000
James C Anderson
exaly  

A Convenient Synthesis of 5-Oxo-5,6,7,8-tetrahydro-4H-benzo-[b]-pyran Derivatives Catalyzed by KF-Alumina

Synthetic Communications, 2003
Xiang-Shan Wang, Da-Qing Shi, Shu-Jiang Tu   +2 more
exaly  

From 4-Pyrans

2003
openaire   +1 more source

Cytotoxic and antibacterial pyran-2-one derivatives from Croton crassifolius

Phytochemistry Letters, 2014
Hui-Hong Li, Feng-Ming Qi, Le-Le Dong
exaly  

An efficient synthesis of 4H,5H-pyrano[3,4-c]pyran-4,5-diones from a suitably functionalized 2H-pyran-2-one

Tetrahedron Letters, 2004
Diptesh Sil
exaly