Results 21 to 30 of about 2,523 (263)

Conformational Analysis Explores the Role of Electrostatic Nonclassical CF···HC Hydrogen Bonding Interactions in Selectively Halogenated Cyclohexanes. [PDF]

J Org Chem
Funding: Fundação de Amparo à Pesquisa do Estado de São Paulo - 2018/03910-1, 2023/14064-2; China Scholarship Council; Fundo de Apoio ao Ensino, à Pesquisa e Extensão, Universidade Estadual de Campinas - 3472/23The conformational equilibria of ...
He M, Piscelli BA, Cormanich RA, O'Hagan D.   +3 more
europepmc   +3 more sources

Establishment of a set of skeletal oxidation mechanisms for mono-alkylated cyclohexanes with consistent structure

, 2023
As a major chemical class of fossil fuels, mono-alkylated cyclohexanes are frequently employed to construct the surrogate fuels of fossil fuels. Much effort has been made to study the oxidation behavior of monoalkylated cyclohexanes, but reduced/skeletal
Chang, Yachao, Xue Dong, Li, Tao, Huang, Shuai, Jia, Ming, Tao Li, Dong, Xue, Shuai Huang, Ming Jia, Yachao Chang   +9 more
core   +2 more sources

1,2,3,4,5,6‐hexakis(trifluoromethyl)‐ Cyclohexanes [PDF]

, 2020
Authors thank the Engineering and Physical Sciences Research Council (EPSRC) for funding and the Chinese Scholarship Council for a studentship (CY).We report the synthesis of all‐cis 1,2,4,5‐tetrakis (trifluoromethyl)‐ and all‐cis 1,2,3,4,5,6‐hexakis ...
O'Hagan, David, David B. Cordes, Alexandra M. Z. Slawin, Röschenthaler, Gerd-Volker, Agnes Kütt, Michael Bühl, David O'Hagan, Cihang Yu, Cordes, David B., Tomas Lebl, Kütt, Agnes, Gerd‐Volker Röschenthaler, Lebl, Tomas, Slawin, Alexandra M. Z., Buehl, Michael, Yu, Cihang, Lebl, Tomas; id_orcid, Buehl, Michael; id_orcid, Slawin, Alexandra M. Z.; id_orcid, Cordes, David B.; id_orcid, O'Hagan, David; id_orcid   +20 more
core   +1 more source

A-value revisited: ring flip energy of chair structures in halogenated cyclohexanes by quantum chemical methods

, 2022
A-value is conventionally defined as the ring flip Gibbs energy of chair conformers in monosubstituted cyclohexanes. It is well accepted in organic chemistry as one of the proxies of steric hindrance of a substituent group with respect to hydrogen.
Taweetham Limpanuparb (3920594), Junming Ho (1342764), Wanutcha Lorpaiboon (7440218), Sopanant Datta (8204808)   +3 more
core   +1 more source

Selective hydrogenation of arenes to cyclohexanes in water catalyzed by chitin-supported ruthenium nanoparticles [PDF]

, 2016
The selective hydrogenation of arenes to cyclohexanes is promoted by Ru/chitin under aqueous conditions without the loss of C–O/C–N linkages. The selective hydrogenation of aromatic compounds to cyclohexanes was found to be promoted by chitin-supported ...

core   +2 more sources

Catalytic Asymmetric Synthesis of Cyclohexanes by Hydrogen Borrowing Annulations [PDF]

, 2019
Hydrogen borrowing catalysis serves as a powerful alternative to enolate alkylation, enabling the direct coupling of ketones with unactivated alcohols.
Wasim M. Akhtar, Fernanda Duarte, Tom A. Young, Timothy J. Donohoe, Roly J. Armstrong   +4 more
core   +1 more source

Synthesis of 2,3-dihydronaphtho[2,3-d][1,3]thiazole-4,9-diones and 2,3-dihydroanthra[2,3-d][1,3]thiazole-4,11-diones and novel ring contraction and fusion reaction of 3H-spiro[1,3-thiazole-2,1'-cyclohexanes] into 2,3,4,5-tetrahydro-1H-carbazole-6,11-diones

Beilstein Journal of Organic Chemistry, 2013
Treatment of N-substituted 2-(methylamino)naphthoquinones 3 and -anthracene-1,4-diones 4 with S2Cl2 and DABCO in chlorobenzene gave the corresponding 2,3-dihydronaphtho[2,3-d][1,3]thiazole-4,9-diones 1 and 2,3-dihydroanthra[2,3-d][1,3]thiazole-4,11 ...
Lidia S. Konstantinova, Kirill A. Lysov, Ljudmila I. Souvorova, Oleg A. Rakitin   +3 more
doaj   +1 more source

Synthesis of substituted and condensed tetrahydrospiro[benzo-2- azepinecyclohexanes] from 1-cyano- and 1-carbamoyl-5-methyl-4,5-dihydro-3H- spiro[benzo-2-azepine-3,1′-cyclohexanes]

, 2020
Substitution of the nitrile group by hydroxylamine and hydrazine has been effected in 1-cyanodihydrospiro[benzo-2-azepine-3,1′-cyclohexane]. From the 1-cyano and 1-hydrazino derivatives tetrahydrospiro{1,2,3- and 1,2,4-triazolo[5,1-a]benzoazepine-5,1 ...
Levov A.N., Eganov A.A., Chernyshev A.I., Varlamov A.V., Grudinin D.G.   +4 more
core   +2 more sources

Synthetic approaches to komarovispiranes. Enantiospecific synthesis of bicyclo[3.3.0]octanespiro[3.1′]cyclohexanes

, 2007
A ring-closing metathesis based spiroannulation of cyclopentane and cyclohexanes at the C-3 carbon atom of a bicyclo[3.3.0]octane, as a model study directed towards the enantiospecific synthesis of the novel diterpenes komarovispiranes, is ...
Srikrishna, A, Beeraiah, B
core   +2 more sources

Selective C–H bond hydroxylation of cyclohexanes in water by supramolecular control

, 2017
A new approach for selective hydroxylation of non-activated cyclohexanes using dioxirane generated in situ in water through supramolecular control has been developed.
Jian-Fang Cui, Bin Yang, Man Kin Wong
core   +1 more source