Results 191 to 200 of about 3,681 (218)

Oxobenzo[f]benzopyrans as new fluorescent photolabile protecting groups for the carboxylic function

Tetrahedron, 2006
Ana Margarida Loureiro Piloto Cerqueira, Susana P G Costa, M Sameiro T Gonçalves   +2 more
exaly  

A one-pot synthesis of functionalized 2,2-disubstituted 2H-1-benzopyrans

Tetrahedron Letters, 1998
Janine Cossy
exaly  

Synthesis of functionalized benzopyrans by sequential [3+3]-cyclization—Williamson reactions of 1,3-bis(trimethylsilyloxy)-7-chlorohepta-1,3-dienes

Tetrahedron Letters, 2005
Peter Langer
exaly  

Efficient and general method for the synthesis of benzopyrans by ethylenediamine diacetate-catalyzed reactions of resorcinols with α,β-unsaturated aldehydes. One step synthesis of biologically active (±)-confluentin and (±)-daurichromenic acid

Tetrahedron Letters, 2005
Yong Rok Lee
exaly  

Benzopyrans as selective estrogen receptor β agonists (SERBAs). Part 5: Combined A- and C-ring structure–activity relationship studies

Bioorganic and Medicinal Chemistry Letters, 2007
Jim D Durbin
exaly  

A novel carbanion-olefin intramolecular cyclization: synthesis of substituted 2-aroyl-3,4-dihydro-2H-benzopyrans from salicylaldehydes

Tetrahedron Letters, 2009
Sie-Rong Li, Tzu-Pin Wang
exaly  

Conversion of 4-1-Benzopyran-4-thiones into 4-1-Benzopyran-4-ones

2003
A. C. Williams, N. Camp
openaire   +1 more source

Benzopyrans. 17. Triethylamine-mediated transformation of 4-oxo-4H-[1]benzopyran-3-carboxaldehyde

The Journal of Organic Chemistry, 1984
Chandra Kanta Ghosh, Chandrakanta Bandyopadhyay, Nimai Tewari   +2 more
openaire   +1 more source

Synergistic effect of three benzopyrans isolated from Hypericum polyanthemum in U‐373 MG glioblastoma cell line

Phytotherapy Research, 2008
Ivana Grivicich, Alexandre B F Ferraz, Andrea Regner   +2 more
exaly  

Benzopyrans from Melicope ptelefolia leaves

Phytochemistry, 1997
exaly