Results 41 to 50 of about 11,171 (165)

Substituent Effects on the Stability and Antioxidant Activity of Spirodiazaselenuranes

Molecules, 2015
Spirodiazaselenuranes are structurally interesting compounds and the stability of these compounds depends highly on the nature of the substituents attached to the nitrogen atoms.
Devappa S. Lamani, Debasish Bhowmick, Govindasamy Mugesh   +2 more
doaj   +1 more source

Highly congested spiro-compounds via photoredox-mediated dearomative annulation cascade. [PDF]

Commun Chem, 2022
Zhou C, Shatskiy A, Temerdashev AZ, Kärkäs MD, Dinér P.   +4 more
europepmc   +1 more source

3'-R-Spiro[cycloalkyl-1(2), (hetaryl-3(4), 6'-[1,2,4]triazino[2,3-c]quinazoline]-2'(7'H)-2-оnes as a perspective class of compounds with actoprotective activity

Zaporožskij Medicinskij Žurnal, 2017
Quinazolines and their derivatives are a perspective class of compounds with versatile biological activities. Their representatives are used in medical practice as sleeping, diuretic, antimicrobial and antitumor drugs.
O. S. Kolomoets, О. Yu. Voskoboynik, I. S. Nosulenko, O. V. Krivoshey, A. I. Avramenko, G. G. Berest, S. I. Kovalenko   +6 more
doaj   +1 more source

A Nazarov-Ene Tandem Reaction for the Stereoselective Construction of Spiro Compounds. [PDF]

Chemistry, 2021
Etling C, Tedesco G, Kalesse M.
europepmc   +1 more source

Tandem RCM–Claisen Rearrangement–[2+2] Cycloaddition of O,O'-(But-2-en-1,4-diyl)-bridged Binaphthols

Molecules, 2012
Attempted RCM of 2,2'-bis(allyloxy)-1,1'-binaphthyl resulted in a Claisen-type rearrangement of a postulated labile dioxacyclodecine proceeding at room temperature and followed by [2+2] cycloaddition.
Michael Abraham, Wolfgang Reischl, Karl A. Kirchner, Alexander Roller, Luis F. Veiros, Michael Widhalm   +5 more
doaj   +1 more source

Ultrasound-Engineered fabrication of immobilized molybdenum complex on Cross-Linked poly (Ionic Liquid) as a new acidic catalyst for the regioselective synthesis of pharmaceutical polysubstituted spiro compounds. [PDF]

Ultrason Sonochem, 2021
Elyasi Z, Ghomi JS, Najafi GR.
europepmc   +1 more source

4-Benzyl-1,2,4-triazaspiro[4.5]dec-1-ene-3-thione

IUCrData, 2016
In the title compound, C14H17N3S, the cyclohexane ring adopts a chair conformation. The dihedral angle between the triazole and phenyl ring is 77.2 (3)°.
Shaaban K. Mohamed, Mehmet Akkurt, Jerry P. Jasinski, Alaa A. Hassan, Ahmed T. Abdel-Aziz, Mustafa R. Albayati   +5 more
doaj   +1 more source

Entry to new spiroheterocycles via tandem Rh(II)-catalyzed O–H insertion/base-promoted cyclization involving diazoarylidene succinimides

Beilstein Journal of Organic Chemistry
A facile approach to novel medicinally relevant spiro heterocyclic scaffolds (namely furan-2(5H)-ones, tetrahydrofurans and pyrans spiro-conjugated with the succinimide ring) has been developed.
Alexander Yanovich, Anastasia Vepreva, Ksenia Malkova, Grigory Kantin, Dmitry Dar’in   +4 more
doaj   +1 more source

An Unexpected Formation of Spiro Isoxazoline-Dihydrofurane Compounds from Substituted Ketofurfuryl Alcohols

Molecules
Oximation of substituted ketofurfuryl alcohols in the presence of hydroxylamine hydrochloride and pyridine in ethanol as solvent led to a new class of spiro derivatives presenting a 7-methylene-1,6-dioxa-2-azaspiro [4.4] nona-2,8-diene skeleton along ...
Claire Cuyamendous, Mathieu Yves Laurent, Christine Saluzzo   +2 more
doaj   +1 more source