Results 61 to 70 of about 13,199 (173)

γ-Radiation-induced carboxylation of pyrrolidine

, 1976
Amino acids produced in the γ-radiation-induced carboxylation of pyrrolidine and formate in neutral aqueous solution have been studied. Two products only were found in the ratio 1 : 5.5.
A Davison, DF Sangster, NT Barker
core   +1 more source

15-(4-Chlorophenyl)-6b-hydroxy-17-methyl-6b,7,16,17-tetrahydro-7,14a-methanonaphtho[1′,8′:1,2,3]pyrrolo[3′,2′:8,8a]azuleno[5,6-b]quinolin-14(15H)-one methanol hemisolvate

IUCrData, 2016
In the title solvate, C35H25ClN2O3·0.5CH3OH, the conformation of the central 1-methylpyrrolidine ring is best described as an envelope with the N atom as the flap.
J. M. Joseph, Vijayan Viswanathan, Devadasan Velmurugan   +2 more
doaj   +1 more source

A Ruthenium-Catalyzed Pyrrolidine and Piperidine Synthesis

, 2016
A Ruthenium-Catalyzed Pyrrolidine and Piperidine ...
Barry M. Trost (1309395), Anthony B. Pinkerton (1346583), Doris Kremzow (2983095)   +2 more
core   +1 more source

Pyrrolidine derivatives as new inhibitors of alpha-mannosidases and growth inhibitors of human cancer cells [PDF]

, 2006
New pyrrolidine-3,4-diol derivatives were prepared from D-(-)- and L(+)-phenylglycinol and tested for their ability to inhibit 25 commercial glycosidases.
Juillerat-Jeanneret, L, Gerber-Lemaire, S, Gerber-Lemaire, Sandrine, Schütz, Catherine, Fiaux, Hélène, Vogel, P, Fiaux, H, Schuetz, C, Vogel, Pierre, Juillerat-Jeanneret, Lucienne   +9 more
core   +1 more source

Crystal structure of 6-(4-chlorophenyl)-6a-nitro-6a,6b,8,9,10,12a-hexahydro-6H,7H-spiro[chromeno[3,4-a]indolizine-12,11′-indeno[1,2-b]quinoxaline]

Acta Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C35H27ClN4O3, crystallized with two independent molecules (A and B) in the asymmetric unit. In both molecules, the pyran and pyridine rings adopt envelope and chair conformations, respectively.
S. Syed Abuthahir, M. NizamMohideen, V. Viswanathan, D. Velmurugan, J. Nagasivarao   +4 more
doaj   +1 more source

Crystal structure of methyl 3′-benzamido-4′-(4-methoxyphenyl)-1′-methylspiro[indeno[1,2-b]quinoxaline-11,2′-pyrrolidine]-3′-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C35H30N4O3, the spiro C atom connects the five-membered pyrrolidine ring and the indenoquinoxaline ring system. The pyrrolidine ring adopts a twist conformation. An intramolecular N—H...N interaction between the amino group and the
Kuppan Chandralekha, Adukamparai Rajukrishnan Sureshbabu, Deivasigamani Gavaskar, Srinivasakannan Lakshmi   +3 more
doaj   +1 more source

Multicomponent reactions for DNA‐encoded library construction: Scaffold diversity and reaction engineering strategies

Bulletin of the Korean Chemical Society, EarlyView.
Abstract DNA‐encoded libraries (DELs) enable large‐scale screening for hit identification, but accessing sp3‐rich, three‐dimensional chemotypes beyond flat, aromatic scaffolds remains challenging. Multicomponent reactions (MCRs) assemble such complexity from simple building blocks in a single step, and reaction‐engineering strategies have extended on ...
Jimin Moon, Hyemin Yoon, Kang Ju Lee, Hyun Jin Kim   +3 more
wiley   +1 more source

Crystal structure of ethyl 1′,5-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C23H22N2O4S, crystallized with two independent molecules (A and B) in the asymmetric unit. They have very similar conformations with the pyrrolidine ring having a twisted conformation, on the Cspiro—Cspiro bond, in both molecules.
R. Raja, J. Govindaraj, M. Suresh, R. Raghunathan, A. SubbiahPandi   +4 more
doaj   +1 more source

Dual‐Functional Polystyrene‐Based Borate Complexes: Recyclable Alkyl Radical Sources and Photodegradable Absorbents

Chemistry – A European Journal, EarlyView.
Dual‐functional polystyrene‐based polymers bearing 2,2′‐(pyridine‐2,6‐diyl)diphenol (PDP) moieties form photoexcitable alkyl borate complexes: (i) As recyclable radical sources, they enable Giese‐type additions with facile purification by reprecipitation and demonstrate proof‐of‐concept for polymer recovery (50% PDP regeneration).
Nami Jimba, Ryosei Ishii, Kazuki Wako, Tomoki Hirohata, Kosuke Sato, Tomohiro Kubo, Kotaro Satoh, Yuto Sumida, Hirohisa Ohmiya, Shinsuke Inagi   +9 more
wiley   +1 more source

Synthesis and Structures of Novel Chiral Cyclic Hypervalent Iodine(III) Reagents for Metal‐Free Ligand‐Transfer Reactions

Chemistry – A European Journal, EarlyView.
Several new chiral cyclic hypervalent iodine(III) reagents have been synthesized and characterized. Carbon‐based ligands were successfully installed onto the hypervalent iodine centers, giving thus access to novel chiral cyano‐, trifluoromethyl‐ or alkynyl‐bearing λ3‐iodanes.
Emmanuel Valzer, Jean‐Marc Sotiropoulos, Karinne Miqueu, Laurent Pouységu, Stéphane Quideau   +4 more
wiley   +1 more source