Synthesis of Dibenzoazulene Derivatives via Pd‐Catalyzed (3+2) Alkyne Annulation of Dibenzosuberenone
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DOI: 10.1002/cctc.202401310
Abstract: Non‐benzenoid PAHs with pentagon/heptagon pairs have unique electronic structures and promising opto‐electronic properties. However, the construction of pentagon/heptagon pair units in these PAHs is challenging. Herein, we developed a Pd‐catalyzed (3+2) alkyne annulation reaction of… read more here.
Keywords: dibenzoazulene derivatives; catalyzed alkyne; synthesis dibenzoazulene; alkyne annulation ... See more keywords
C-H Activation and Alkyne Annulation via Automatic or Intrinsic Directing Groups: Towards High Step Economy.
Sign Up to like & getrecommendations! Published in 2018 at "Chemical record"
DOI: 10.1002/tcr.201700024
Abstract: Direct transformation of carbon-hydrogen bond (C-H) has emerged to be a trend for construction of molecules from building blocks with no or less prefunctionalization, leading high atom and step economy. Directing group (DG) strategy is… read more here.
Keywords: step economy; alkyne annulation; step; activation alkyne ... See more keywords
A Versatile Pd-Catalyzed Alkyne Annulation Process for Benzo[a]carbazoles and their Anticancer Analogues
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DOI: 10.1021/acsomega.2c04755
Abstract: A Pd-catalyzed, simple, and divergent approach for the direct synthesis of benzo[a]carbazoles from internal alkynes and N-tosyl-iodoindoles has been demonstrated. This methodology highlights the influences of reaction media and temperature for the synthesis of either… read more here.
Keywords: alkyne annulation; catalyzed alkyne; benzo carbazoles; versatile catalyzed ... See more keywords
Palladium(ii)-catalyzed vinylic geminal double C-H activation and alkyne annulation reaction: synthesis of pentafulvenes.
Sign Up to like & getrecommendations! Published in 2020 at "Chemical communications"
DOI: 10.1039/c9cc09564k
Abstract: The first transition-metal-catalyzed vinylic geminal double C(sp2)-H activation and di-substituted alkyne annulation reaction is reported. This palladium(ii)-catalyzed, amide directed reaction of vinylic compounds with di-substituted alkynes offers an efficient synthetic path to pentafulvenes, which are… read more here.
Keywords: geminal double; reaction; catalyzed vinylic; alkyne annulation ... See more keywords
Palladium(II)-Catalyzed Alkyne Annulation Reactions for the Synthesis of Cyclopenta[ b ]naphthalene-1,4-diones
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DOI: 10.1055/a-2599-1277
Abstract: A palladium-catalyzed C–H activation and alkyne annulation reaction of 2-hydroxy-3-(2-thienyl)naphthalene-1,4-diones has been developed for the construction of biologically important cyclopenta[ b ]naphthalene-1,4-dione derivatives. This reaction proceeds through hydroxy-group-directed heteroaryl C(sp 2 )–H activation, insertion of… read more here.
Keywords: alkyne annulation; cyclopenta naphthalene; naphthalene diones; palladium catalyzed ... See more keywords