Results 71 to 80 of about 1,947 (193)
Acta Crystallographica Section E: Crystallographic Communications, 2019 Instances of crystal structures that remain isomorphous in spite of some minor changes in their respective molecules, such as change in a substituent atom/group, can provide insights into the factors that govern crystal packing.
R. Sribala +3 more
doaj +1 more source
Antitumor Activity of Artemisinin and Its Derivatives: From a Well-Known Antimalarial Agent to a Potential Anticancer Drug [PDF]
, 2011 Improvement of quality of life and survival of cancer patients will be greatly enhanced by the development of highly effective drugs to selectively kill malignant cells.
P. Crespo-Ortiz, Maria, Wei, Ming
core +2 more sources
Heavier Diferrocenylpnictogenium Ions
Chemistry – A European Journal, Volume 31, Issue 1, January 2, 2025.Four shades of pastel: The synthesis, reactivity and in‐depth characterisation of cationic group 15 carbene analogues is reported. Abstract The synthesis, characterization and reactivity of the diferrocenylphosphenium ion [Fc2P]+ was extended to the heavier diferrocenylpnictogenium ions, [Fc2E]+ (E=As, Sb, Bi).
Corina Stoian +6 more
wiley +1 more source
Adventures in the Chemistry of Multicomponent and Domino Reactions
European Journal of Organic Chemistry, Volume 27, Issue 24, June 24, 2024.The present article presents a personalized review of multicomponent and domino reactions directed towards the synthesis of complex heterocyclic products. Chemistry includes the combination of Knoevenagel with hetero‐Diels‐Alder reactions, [3+2] cycloadditions and enamine cyclizations.
Peter Langer
wiley +1 more source
Molecules, 2017 For the first time, arylmethylidene cyclohexanones that are non-symmetrical due to the presence of peripheral substituents were studied in 1,3-dipolar cycloaddition reactions.
Alexander Anis’kov +3 more
doaj +1 more source
Selective synthesis of iminodioxaspirononanes and diazaspirononanes using formic acid-activated Mn(III) oxidation of N1,N3-disubstitued malonamides with 1,1-diarylethenes [PDF]
, 2022 The Mn(III)-based oxidation of N1,N3-disubstituted malonamides with alkenes by Kurosawa spirolactonization using malonic acid afforded iminodihydrofurans.
Hiroshi, Nishino +4 more
core
Hydrindacene‐Based Zinc Aryl Thiolate and Aryl Selenolate Zn(EMSFluind)2 (E=S, Se)
Zeitschrift für anorganische und allgemeine Chemie, Volume 650, Issue 9-10, May 17, 2024.The bulky s‐hydrindacene‐based MSFluind substituent was used to generate thiol 1S and selenol 1Se and the corresponding zinc aryl thiolate 2S and selenolate 2Se, all of which were structurally characterized using single crystal XRD. Abstract The bulky aryl thiol, MSFluindSH (1S), and aryl selenol, MSFluindSeH (1Se), possessing a tetramethyl‐s ...
Pascal Komorr +2 more
wiley +1 more source
Crystal structure of 2'H,7'H-dispiro[fluorene-9,2'-dibenzo[c,e]- oxepine-7',9"-fluorene], C38H24O
Zeitschrift für Kristallographie - New Crystal Structures, 2003 C38H24O, monoclinic, P121/n1 (No. 14), a = 10.737(2) Å, b = 16.963(3) Å, c = 15.246(3) Å, β = 109.30(3)°, V = 2620.8 Å3, Z = 4, Rgt(F) = 0.088, wRref(F2) = 0.252, T = 293 K.
Ibragimov B. T. +3 more
doaj +2 more sources
Molecules, 2013 We synthesized two series of androstane derivatives as inhibitors of type 3 and type 5 17β-hydroxysteroid dehydrogenases (17β-HSDs). In the first series, four monospiro derivatives at position C17 were prepared from androsterone (ADT ...
Donald Poirier +3 more
doaj +1 more source
A novel route for the synthesis of six- and seven-membered 6-trimethylsilylspiro4,nalk-6-enes [PDF]
, 2012 A novel route for the synthesis of 6-trimethylsilylspiro4,5dec-6-ene and 6-trimethylsilylspiro4,6undec-6-ene by the Wurtz-Fittig type coupling reaction of 6-iodospiro4,5dec-6-ene and 6-iodospiro4,6undec-6-ene with alkali metals and chlorotrimethylsilane ...
Hari Prasad, S., Venkatesha, M.A.
core