Results 101 to 110 of about 16,938 (213)

6-Chloro-3-(2,2-dibromoacetyl)-2H-chromen-2-one

IUCrData, 2017
In the title compound, C11H5Br2ClO3, the benzopyran ring system is essentially planar (r.m.s. deviation = 0.023 Å) and one of the bromine atoms is almost coplanar with it [deviation = 0.091 (1) Å].
Kaviraj Yarbagi, Ramanaiah Chennuru, Sudarshan Mahapatra, B. Venkateswara Rao, Paul Douglas Sanasi   +4 more
doaj   +1 more source

Solid-Phase Parallel Synthesis of Drug-Like Artificial 2<em>H</em>-Benzopyran Libraries

Molecules, 2012
This review covers the construction of drug-like 2<em>H</em>-benzopyrans and related libraries using solid-phase parallel synthesis. In this context, the preparation of substituted benzopyrans such as mono-, di- and trisubstituted benzopyran ...
Young-Dae Gong, Taeho Lee
doaj   +1 more source

3-Phenylcoumarin

Acta Crystallographica Section E, 2012
In the title compound, C15H10O2, a 3-phenyl derivative of the coumarin (also known as 2H-chromen-2-one or 2H-1-benzopyran-2-one) scaffold, the Cp&#8212;Cp&#8212;Cc&#8212;Cc torsion angle between the coumarin (c) ring system and the phenyl (p)
Maria J. Matos, Lourdes Santana, Eugenio Uriarte   +2 more
doaj   +1 more source

Blockade by NIP-142, an Antiarrhythmic Agent, of Carbachol-Induced Atrial Action Potential Shortening and GIRK1/4 Channel

Journal of Pharmacological Sciences, 2006
.: Mechanisms for the atria-specific action potential-prolonging action of NIP-142 ((3R*,4S*)-4-cyclopropylamino-3,4-dihydro-2,2-dimethyl-6-(4-methoxyphenylacetylamino)-7-nitro-2H-1-benzopyran-3-ol), a benzopyran compound that terminates experimental ...
Matsuda Tomoyuki, Ito Mie, Ishimaru Sayoko, Tsuruoka Noriko, Saito Tomoaki, Iida-Tanaka Naoko, Hashimoto Norio, Yamashita Toru, Tsuruzoe Nobutomo, Tanaka Hikaru, Shigenobu Koki   +10 more
doaj   +1 more source

Synthesis and transformation of halochromones [PDF]

, 2014
Chromones (4H-1-benzopyran-4-ones) are one of the most abundant groups of naturally occurring oxygen containing heterocyclic compounds possessing a benzo-γ-pyrone framework, 1a.
Santos, Clementina M.M., Silva, Artur, Tomé, Sara M.   +2 more
core   +1 more source

NATURAL COVALENTLY COMBINED DERIVATIVES OF 2H-1-BENZOPYRAN-2-ONE

Разработка и регистрация лекарственных средств, 2019
Coumarins, known as 2Н-1-benzopyran-2-one (or 2H-chromen-2-one), are present in remarkable amounts in plants, also have been detected in microorganisms and animal sources.
A. Z. Abyshev, C. B. Nguyen
doaj  

E-Notopterol

Acta Crystallographica Section E, 2009
The title compound (systematic name: 4-{[(2E)-5-hydroxy-3,7-dimethylocta-2,6-dien-1-yl]oxy}-7H-furo[3,2-g][1]benzopyran-7-one), C21H22O5, is a known furanocoumarin, which was isolated from the Chinese herbal product Radix seu Rhizoma Notopterygii.
doaj   +1 more source

Stereochemistry of Two Hydroxybiflavanonols from Garcinia cola Nuts [PDF]

, 1987
Fischer, R., Madubunyi, I., Scheer, Hugo
core   +1 more source

Green and practical synthesis of benzopyran and 3-sunstituted coumarin derivatives by Brønsted acid ionic liquid [(CH₂)₄SO₃HMIM][HSO₄]

Bulletin of the Chemical Society of Ethiopia, 2011
Different benzopyran and 3-substituted coumarin derivatives were synthesized by a green and practical procedure in the presence of catalytic amount of Brønsted acid ionic liquid (BAIL) [(CH2)4SO3HMIM][HSO4] in water.
Majid M. Heravi, Parvaneh Ansari, Mina Saeedi, Narges Karimi, Niloofar Tavakoli-Hosseini   +4 more
doaj  

Synthesis of benzofurans and benzopyrans

, 2002
Syntheses of 2,3-dihydrobenzofurans and 3,4-dihydrobenzopyrans normally involve several stages, therefore efficient syntheses of these compounds are desirable. A number of 3,4-dihydrobenzopyrans derivatives were prepared in one pot syntheses. The reaction is thought to proceed through cation intermediates, involving allylic cations generated by the ...
openaire   +2 more sources