Results 181 to 190 of about 4,131 (247)

Synthesis, Crystal structure and DFT studies of Polyfunctionalized Alkenes: A transition Metal-Free C(sp2)-H Sulfenylation of electron deficient Alkyne

Journal of Molecular Structure, 2021
An efficient, novel and transition metal-free protocol has been developed for the synthesis of polyfunctionalized aminothioalkenes via direct C H sulfenylation of in situ generated enamines.
Mohit Saroha, Jayant Sindhu, Parvin Kumar, J. Khurana   +3 more
semanticscholar   +1 more source

Studies with Polyfunctionally Substituted Heterocycles: Syntheses of Polyfunctionally Substituted Isoquinolines

Chemistry of Heterocyclic Compounds, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Pentagonal Dodecahedranes:  Polyfunctionalization and MS Fragmentation

The Journal of Organic Chemistry, 2001
With the use of four- to eight-fold functionalized dodecahedranes (1-3), opportunities to arrive at highly strained dodecahedranes with two to four pairs of vicinal, eclipsed bromine substituents through front-side substitution and addition reactions have been explored.
P, Landenberger, K, Scheumann, M, Keller, D, Hunkler, H, Fritz, J, Wörth, L, Knothe, H, Prinzbach   +7 more
openaire   +2 more sources

Synthesis of 1,1,3-Polyfunctionalized Cyclobutane Derivatives from the Reaction of Sulfur Ylides with Bicyclo[1.1.0]butanes.

Organic Letters
1,1,3-Polyfunctionalized cyclobutane derivatives have been synthesized from sulfur ylides and bicyclo[1.1.0]butanes (BCBs). This protocol operates under mild reaction conditions without the need for catalysts, generally producing moderate to good yields ...
Jing Wang, Chaowei Xiang, Fang Luo, Ling-Hui Zeng, Chong Zhang, Jian-kang Zhang, Huajian Zhu, Ruoyu He, Jiaan Shao   +8 more
semanticscholar   +1 more source

Polyfunctionalized Tetrathiafulvalenes for Advanced Materials

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Palladium catalyzed oxidation of biorenewable β-citronellol and geraniol for the synthesis of polyfunctionalized fragrances

, 2021
β-Citronellol and geraniol are bio-renewable compounds found in essential oils of various plants. Allylic oxidation of trisubstituted sterically highly encumbered carbon-carbon double bonds in their molecules with dioxygen can be efficiently catalyzed by
A. N. Venancio, L. Menini, D. Maronde, E. V. Gusevskaya, L. A. Parreira   +4 more
semanticscholar   +1 more source

Synthesis of polyfunctionalized methylphosphine oxides

Russian Chemical Bulletin, 2012
N,N-Dialkylamino(diphenylphosphoryl)chloromethanes, a new type of organophosphorus compounds, were synthesized. On dissolving in polar and low polar solvents, N,N-dialkylamino(diphenylphosphoryl)chloromethanes dissociate spontaneously with the P—C bond cleavage to form the diphenylphosphinite anion Ph2PO−.
V. P. Morgalyuk, T. V. Strelkova, E. E. Nifant’ev   +2 more
openaire   +1 more source

Copper-Catalyzed Asymmetric [3 + 2] Cycloaddition of N-2,2,2-Trifluoroethylisatin Ketimines to Access Three Classes of Polyfunctionalized Spiro-Pyrrolidine-Oxindole Motifs.

Organic Letters
A facile copper-catalyzed [3 + 2] cycloaddition of N-2,2,2-trifluoroethylisatin ketimines with various electron-deficient alkenes to access structurally polyfunctionalized spiro-pyrrolidine-oxindole motifs has been developed.
Wen-Feng Xu, Ren-Xu Xiao, Shuo Lv, Xingjun Li, Ming-Xing Lan, Xue-Qing Mou, Yun Zhang, Yong‐Zheng Chen, Bao‐Dong Cui   +8 more
semanticscholar   +1 more source

STUDIES WITH POLYFUNCTIONALLY SUBSTITUTED HETEROAROMATICS: A NEW ROUTE TO POLYFUNCTIONALLY SUBSTITUTED ANNELATED MERCAPTOPHTHALAZINES

Phosphorus, Sulfur, and Silicon and the Related Elements, 1993
Abstract The thieno[3,4-d]pyridazine derivatives 1a, b reacted with acrylonitrile to afford the mercaptophthalazine derivatives 6a, b. The latter products reacted with acrylonitrile again to afford 11a, b. With maleic anhydride and N-phenylmaleimide they afforded 13a-d respectively.
Mohamed Hilmy Elnagdi, Rafat Milad Mohareb, Fatma Abd-Elmaksoud Abd-elaal, Halla Abas Mohamed   +3 more
openaire   +1 more source

Contilistat, a New Multitarget Small Polyfunctionalized Indole Derivative

Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry
We describe the design, synthesis, and in vitro biological evaluation of contilistat, a novel polyfunctionalized indole derivative designed as a hybrid of contilisant and vorinostat containing key pharmacophoric groups of both parent ligands.
Mireia Toledano-Pinedo, Daniel Diez-Iriepa, Alicia Porro-Pérez, Linda Schäker-Hübner, M. Hanl, A. Samadi, Pedro Almendros, I. Iriepa, M. M. Rodríguez-Fernández, C. Griñán-Ferré, A. Siwek, Małgorzata Wolak, G. Satała, A. Bojarski, Agata Doroz‐Płonka, J. Handzlik, Justyna Godyń, D. Knez, Stanislav Gobec, Anna Więckowska, Finn K. Hansen, José Marco-Contelles   +21 more
semanticscholar   +1 more source