DBU-Catalyzed Diastereo/Regioselective Access to Highly Substituted Spiro-oxetane Oxindoles via Ring Annulation of Isatins and Allenoates.

Autor: Durugappa, Basavaraja, C S, Athira, Doddamani, Siddalingeshwar V., Somappa, Sasidhar B.

Publikováno v: Journal of Organic Chemistry; 7/7/2023, Vol. 88 Issue 13, p8882-8888, 7p

Base-enabled access to diastereoselective spirofuran oxindoles and γ-functionalized allenoates

Autor: R R Amrutha, Sasidhar B. Somappa, Eringathodi Suresh, Basavaraja D, C S Athira, Jagadeesh Krishnan, M S Ajay Krishna

Publikováno v: Chemical communications (Cambridge, England). 57(14)

Base assisted divergent reactivity of isatins and allenoates has been achieved, which afforded diastereoselective spirofuran oxindoles and γ-functionalized allenoates. The DBU mediated Morita–Baylis–Hillman (MBH) reaction followed by the cascade

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6180a50c3f7bc90ebf45e2f0d7bd5f77
https://pubmed.ncbi.nlm.nih.gov/33480914

A convenient synthesis of 2,5-diaroyl-4-hydroxy cyclopent-2-enones incorporating aromatic and heteroaromatic moieties

Autor: C. S. Athira, Ani Deepthi, Elambalassery G. Jayasree, Aswathy L. Balachandran

The base-catalyzed reaction of 1,5-diphenyl-pentane-1,3,5-trione with aromatic/heteroaromatic 1,2-diones leading to the synthesis of 2,5-diaroyl-4-hydroxycyclopent-2-enones and its conversion to 2,5-diaroylcyclopentadienones is reported here. 2,5-Dib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfdfb48b0eaecfb69d064c97156ae650

Multicomponent Synthesis of Spiro-dihydropyridine Oxindoles via Cascade Spiro-cyclization of Knoevenagel/Aza-Michael Adducts.

Autor: D B; Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvanthapuram 695019, Kerala, India.; Academy of Scientific and Innovative Research (AcSIR, Ghaziabad 201002, India., C S A; Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvanthapuram 695019, Kerala, India.; Academy of Scientific and Innovative Research (AcSIR, Ghaziabad 201002, India., D SV; Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvanthapuram 695019, Kerala, India.; Academy of Scientific and Innovative Research (AcSIR, Ghaziabad 201002, India., T AK; Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvanthapuram 695019, Kerala, India.; Academy of Scientific and Innovative Research (AcSIR, Ghaziabad 201002, India., Somappa SB; Chemical Sciences & Technology Division, CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Thiruvanthapuram 695019, Kerala, India.; Academy of Scientific and Innovative Research (AcSIR, Ghaziabad 201002, India.

Publikováno v: The Journal of organic chemistry [J Org Chem] 2022 Nov 04; Vol. 87 (21), pp. 13556-13563. Date of Electronic Publication: 2022 Oct 04.