Synthesis of dibenzo[a,j]phenazine compounds using hemicucurbit[6]uril‐catalyzed oxidative dimerization of 2‐arylamines
Sign Up to like & getrecommendations! Published in 2020 at "ChemCatChem"
DOI: 10.1002/cctc.202000956
Abstract: A supramolecular catalytic strategy for the synthesis of dibenzo[a,j]phenazine compounds from 2‐arylamines is demonstrated. The dimerization is achieved through the catalytic action of HemiQ[6] in an acidic environment. Kinetic constants and activation energies have been… read more here.
Keywords: synthesis dibenzo; dibenzo phenazine; dimerization; phenazine compounds ... See more keywords
Rh(iii)-catalyzed synthesis of dibenzo[b,d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones via C–H activation and C–C bond cleavage
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra02074b
Abstract: A redox-neutral synthesis of dibenzo[b,d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones has been realized via Rh(iii)-catalyzed cascade C–H activation annulation. A possible Rh(iii)–Rh(v)–Rh(iii) mechanism involving an unprecedented β-C elimination step was proposed. read more here.
Keywords: pyran ones; dibenzo pyran; synthesis dibenzo; iii ... See more keywords
Synthesis of Dibenzo[a,e]cyclooctene-5,11(6H,12H)-diones via the Elusive Benzocyclobutenone Anion
Sign Up to like & getrecommendations! Published in 2021 at "Synthesis"
DOI: 10.1055/a-1545-7706
Abstract: We reported here a facile synthesis of dibenzo[a,e]cyclooctene-5,11(6H,12H)-diones via dimerization of benzocyclobutenones in the presence of simple base via the elusive benzocyclobutenone anion. The temperature effect played a crucial role in the dimerization reaction. Further… read more here.
Keywords: via elusive; synthesis; synthesis dibenzo; diones via ... See more keywords
Copper-Catalyzed Synthesis of Dibenzo[b,f]imidazo[1,2-d][1,4]oxazepine Derivatives via a Double Ullmann Coupling Reaction
Sign Up to like & getrecommendations! Published in 2019 at "Synthesis"
DOI: 10.1055/s-0037-1611945
Abstract: A double Ullmann coupling reaction successfully takes place between 4,5-diaryl-2-(2-bromophenyl)-1H-imidazoles and 2-bromophenols in the presence of Cs2CO3. This procedure is catalyzed by copper(I) iodide and o-phenanthroline and provides an efficient method for the synthesis of… read more here.
Keywords: coupling reaction; double ullmann; synthesis dibenzo; ullmann coupling ... See more keywords
Strategies in the synthesis of dibenzo[b,f]heteropines
Sign Up to like & getrecommendations! Published in 2023 at "Beilstein Journal of Organic Chemistry"
DOI: 10.3762/bjoc.19.51
Abstract: The dibenzo[b,f]azepine skeleton is important in the pharmaceutical industry, not only in terms of existing commercial antidepressants, anxiolytics and anticonvulsants, but also in reengineering for other applications. More recently, the potential of the dibenzo[b,f]azepine moiety… read more here.
Keywords: strategies synthesis; synthesis dibenzo; chemistry; dibenzo heteropines ... See more keywords