Results 1 to 10 of about 27,991 (255)

[(Pyrrolidin-1-yl)carbothioylsulfanyl]methyl pyrrolidine-1-carbodithioate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2010
The title compound, C(11)H(18)N(2)S(4), was unexpectedly obtained during studies on the reactivity of the complex tris-(acac-κ(2)O,O')gallium(III) (acac is acetyl-acetonate) with C(4)H(8)NCS(2)H in dichloro-methane. The title compound shows disordered two pyrrolidine rings with major and minor occupancies of 0.546 (4) and 0.454 (4).
Yen-Hsiang Huang, Hsiao-Fen Wang, Wei-Lung Chou, Kuang-Hway Yih, Gene-Hsiang Lee   +4 more
openaire   +3 more sources

Synthesis of new pyrrolidine-based organocatalysts and study of their use in the asymmetric Michael addition of aldehydes to nitroolefins

Beilstein Journal of Organic Chemistry, 2017
New pyrrolidine-based organocatalysts with a bulky substituent at C2 were synthesized from chiral imines derived from (R)-glyceraldehyde acetonide by diastereoselective allylation followed by a sequential hydrozirconation/iodination reaction.
Alejandro Castán, Ramón Badorrey, José A. Gálvez, María D. Díaz-de-Villegas   +3 more
doaj   +1 more source

Synthesis and biological evaluation of nojirimycin- and pyrrolidine-based trehalase inhibitors

Beilstein Journal of Organic Chemistry, 2012
A small set of nojirimycin- and pyrrolidine-based iminosugar derivatives has been synthesized and evaluated as potential inhibitors of porcine and insect trehalases.
Davide Bini, Francesca Cardona, Matilde Forcella, Camilla Parmeggiani, Paolo Parenti, Francesco Nicotra, Laura Cipolla   +6 more
doaj   +1 more source

Rh(II)/Pd(0) Dual Catalysis: Carbenoid N-H Insertion/Allylation Cascade Reaction to Construct Highly Functionalized and Polysubstituted Pyrrolidines

Molecules
In the category of drugs approved by the U.S. FDA, pyrrolidine is the most frequently used core of five-membered nonaromatic heterocycles containing nitrogen.
Maocheng Tang, Xianyan Jiao, Deping He, Ji-Xing Zhao, Ping Liu, Chun-Tian Li   +5 more
doaj   +1 more source

A Straightforward Route to Enantiopure Pyrrolizidines and Indolizidines by Cycloaddition to Pyrroline N-Oxides Derived from the Chiral Pool

Molecules, 1998
Enantiomerically pure, five membered cyclic nitrones, easily obtained in large amounts from protected hydroxyacids and aminoacids such as D- and L-tartaric, L-malic, and L-aspartic acids, give cycloaddition reactions with a good diastereocontrol.
Alberto Brandi, Valentina Fedi, Franca M. Cordero, Stefano Cicchi, Andrea Goti   +4 more
doaj   +1 more source

Convenient access to pyrrolidin-3-ylphosphonic acids and tetrahydro-2H-pyran-3-ylphosphonates with multiple contiguous stereocenters from nonracemic adducts of a Ni(II)-catalyzed Michael reaction

Beilstein Journal of Organic Chemistry, 2020
A new synthetic strategy toward nonracemic phosphoryl-substituted pyrrolidines and tetrahydropyranes with three and five contiguous stereocenters is presented.
Alexander N. Reznikov, Dmitry S. Nikerov, Anastasiya E. Sibiryakova, Victor B. Rybakov, Evgeniy V. Golovin, Yuri N. Klimochkin   +5 more
doaj   +1 more source

ELECTROCHEMICAL REDUCTION OF 2,2,5,5-TETRAMETHYLPYRROLINE DERIVATIVES TO CORRESPONDING PYRROLIDINES

Advanced Engineering Research, 2012
The reduction technique of 2,2,5,5-tetramethylpyrroline compounds to pyrrolidines on sodium amalgam preformed under the electrolysis of sodium hydroxide solution is described.
Irina Y. Zhukova, Igor S. Kashparov, Darya S. Garbuznyak   +2 more
doaj  

Skeletal contraction: A novel strategy to access multisubstituted cyclobutane

Green Synthesis and Catalysis, 2022
The polysubstituted and spirocyclic cyclobutanes were efficiently constructed by the utilization of a novel skeletal contraction strategy which only took one-step synthesis from the readily accessible pyrrolidines.
Chunfa Xu, V.U. Bhaskara Rao, Fen-Er Chen   +2 more
doaj   +1 more source

ELECTROCHEMICAL REDUCTION OF 2,2,5,5-TETRAMETHYLPYRROLINE DERIVATIVES TO CORRESPONDING PYRROLIDINES

Вестник Донского государственного технического университета, 2018
The reduction technique of 2,2,5,5-tetramethylpyrroline compounds to pyrrolidines on sodium amalgam preformed under the electrolysis of sodium hydroxide solution is described.
Irina Y. Zhukova, Igor S. Kashparov, Darya S. Garbuznyak   +2 more
doaj  

Carbohydrate-auxiliary assisted preparation of enantiopure 1,2-oxazine derivatives and aminopolyols

Beilstein Journal of Organic Chemistry, 2012
An approach to enantiopure hydroxylated 2H-1,2-oxazine derivatives is presented utilizing the [3 + 3] cyclisation of lithiated alkoxyallenes and an L-erythrose-derived N-glycosyl nitrone as precursors.
Marcin Jasiński, Dieter Lentz, Hans-Ulrich Reissig   +2 more
doaj   +1 more source