Results 241 to 250 of about 164,998 (280)

Dihydroquinazolinones by Titanocene‐Catalyzed Reductive Radical Addition to Quinazolinones

Chemistry – A European Journal, EarlyView.
Tri‐ and tetracyclic dihydroquinazolinones or quinazolinones by titanocene catalysis: A highly diastereoselective and efficient reductive radical addition to quinazolinones enables an unprecedented entry to pharmaceutically relevant dihydroquinazolinones by avoiding the interception of radical intermediates prior to the slow radical addition.
Thomas Heinrichs, Fabian Lang, Konstantin Woitol, Jana Vohn, Andreas Schneider, Andreas Gansäuer   +5 more
wiley   +1 more source

Mild N‑Arylation of Sulfoximines With (Hetero)aryl Chlorides Enabled by α‐Methylnaphthyl‐tBuBrettPhos Palladium Triflate

Chemistry – A European Journal, EarlyView.
A readily accessible, air‐ and moisture‐stable palladium precatalyst, [Pd(1‐MeNAP)(tBuBrettPhos)]OTf, enables the direct N‐arylation of NH‐sulfoximines with (hetero)aryl chlorides under exceptionally mild conditions ideal for late‐stage diversification of drug‐like scaffolds.
Sourav Manna, Mahima Pilania, Kumarjit Sen, Nikolaos V. Tzouras, Angelino Doppiu, Lukas J. Gooßen   +5 more
wiley   +1 more source

Expression of concern: Effectiveness of some novel heterocyclic compounds as corrosion inhibitors for carbon steel in 1 M HCl using practical and theoretical methods. [PDF]

RSC Adv
Fouda AES, Abd El-Maksoud SA, El-Sayed EH, Elbaz HA, Abousalem AS.   +4 more
europepmc   +1 more source

Density functional theory investigation of the contributions of π-π stacking and hydrogen bonding with water to the supramolecular aggregation interactions of model asphaltene heterocyclic compounds. [PDF]

J Mol Model
Lessa MD, Stoyanov SR, de Carneiro JWM, da Costa LM.   +3 more
europepmc   +1 more source

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Heterocyclic compounds

Proceedings of the Indian Academy of Sciences - Section A, 1937
7-Acetoxy-6-ethyl-3-acetyl-2-methylchromone has been prepared by the application of the Kostanecki Reaction to 2: 4-dihydroxy-5-ethylacetophenone. The various derivatives of this chromone have been also described.
S. Zafaruddin Ahmad, R. D. Desai
  +5 more sources

Heterocyclic compounds

Proceedings of the Indian Academy of Sciences - Section A, 1938
Coumarius have been prepared from alkyleyclo-hexanone-2-carboxylates andtrans-β-decalone-3-carboxylate by condensing various dihydric and trihydric phenols either in the presence of concentrated sulphuric acid or phosphorus oxychlorid. The Fries'Transformation of the 7-acetoxy-derivatives of the various coumarins has been studied with the purpose of ...
Nazir Ahmad Chowdhry, R. D. Desai
openaire   +2 more sources

Heterocyclic Compounds

Journal of the American Pharmaceutical Association (Scientific ed.), 1958
I. N. Nazarov, A. Sh. Sharifkanov, K. F. Danilova   +2 more
  +5 more sources

Heterocyclic compounds

Proceedings of the Indian Academy of Sciences - Section A, 1947
R. D. Desai, M. M. Gaitonde, S. Mehdi Hasan, R. C. Shah   +3 more
  +4 more sources

Heterocyclic compounds

Chemistry of Heterocyclic Compounds, 1970
I. N. Azerbaev, P. S. Ibranov, Sh. E. Ismailova   +2 more
  +4 more sources