Synthesis of 2-[2-(Ethoxymethoxy)phenyl]spiro[cyclopropane-1,2′-indene]-1′,3′-dione

Autor: Olga A. Ivanova, Vitaly V. Shorokhov, Ivan A. Andreev, Nina K. Ratmanova, Victor B. Rybakov, Elena D. Strel’tsova, Igor V. Trushkov

Publikováno v: Molbank, Vol 2023, Iss 1, p M1604 (2023)

An 1,3-indanedione-derived donor–acceptor cyclopropane, bearing the ethoxymethyl-protected phenolic group at the ortho-position of the donor aryl substituent, has been synthesized using a reaction sequence involving the Knoevenagel condensation of

Externí odkaz: https://doaj.org/article/af6a1ad4094a4167b32e38fbed07e1a0

Crystal and electronic structure of thiazolium pentaiodide: an experimental and theoretical study of covalent and non-covalent bonds

Autor: Tatiana A. Shestimerova, Ivan A. Andreev, Nina K. Ratmanova, Igor V. Trushkov, Alexey N. Kuznetsov, Andrei V. Shevelkov

Publikováno v: Structural Chemistry.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e25f4f38a0cad237c94eca32b1e5fb73
https://doi.org/10.1007/s11224-022-02097-6

Ambident reactivity of 5-aminopyrazoles towards donor-acceptor cyclopropanes

Autor: Anna E. Vartanova, Irina I. Levina, Nina K. Ratmanova, Ivan A. Andreev, Olga A. Ivanova, Igor V. Trushkov

Publikováno v: Organicbiomolecular chemistry. 20(39)

Lewis acid-catalysed reactions of donor-acceptor cyclopropanes with 1,3-disubstituted 5-aminopyrazoles were investigated. Under catalysis with gallium(III) chloride, products of the three-membered ring opening

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b920abf97a1a1e81ad68132e498ed243
https://pubmed.ncbi.nlm.nih.gov/36148530

Protic Ionic Liquid as Reagent, Catalyst, and Solvent: 1-Methylimidazolium Thiocyanate

Autor: Nina K. Ratmanova, Ivan A. Andreev, André U. Augustin, Olga A. Ivanova, Igor V. Trushkov, Daniel B. Werz, Irina I. Levina, Victor N. Khrustalev

Publikováno v: Angewandte Chemie (International Ed. in English)
Angewandte Chemie International Edition
Angewandte Chemie (International ed. in English) (2021) 60, 14, S. 7927-7934--Angew Chem Int Ed Engl--Angewandte Chemie International Edition--Angew Chem [Engl]--Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker., International edition.--1433-7851--1521-3773

We propose a new concept of the triple role of protic ionic liquids with nucleophilic anions: a) a regenerable solvent, b) a Brønsted acid inducing diverse transformations via general acid catalysis, and c) a source of a nucleophile. The efficiency

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adeafb073d85f1541044f6bfc663868a
https://pubmed.ncbi.nlm.nih.gov/33433034

Strategic approaches to the synthesis of pyrrolizidine and indolizidine alkaloids

Autor: Alexandre V. Leontiev, Nina K. Ratmanova, Olga A. Ivanova, Igor V. Trushkov, Ivan A. Andreev, Daria Momotova, Anton M. Novoselov

Publikováno v: Tetrahedron. 76:131031

The principal methods for the synthesis of pyrrolizidine and indolizidine alkaloids and their unnatural analogs are described. Six main “strategic” approaches in regard to a key step forming azabicyclic skeleton are identified. Namely, these are:

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::859ae63dd1d9aaf9bd97326528cd7aca
https://doi.org/10.1016/j.tet.2020.131031