Arene Binuclear Ru(II)-Promoted Sustainable Synthesis of Substituted Pyrazoles from Alcohols via Acceptorless Dehydrogenative Annulation.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01452
Abstract: We report a selective and sustainable synthesis of substituted pyrazoles via an eco-friendly acceptorless dehydrogenative annulation (ADA) of greener alcohols, malononitrile, and various aromatic hydrazides by newly synthesized binuclear Ru(II) p-cymene complexes. A discrete set… read more here.
Keywords: dehydrogenative annulation; synthesis substituted; sustainable synthesis; substituted pyrazoles ... See more keywords
An Organic Intermolecular Dehydrogenative Annulation Reaction.
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DOI: 10.1021/acs.orglett.7b00562
Abstract: The discovery of a direct method for the synthesis of three-ring heterocyclic carbazoles from unactivated arenes and anilides by a metal-free (organic) intermolecular dehydrogenative annulation reaction under ambient laboratory conditions is reported. Iodine(III) was used… read more here.
Keywords: dehydrogenative annulation; organic intermolecular; annulation reaction; intermolecular dehydrogenative ... See more keywords
Dehydrogenative reagent-free annulation of alkenes with diols for the synthesis of saturated O-heterocycles
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DOI: 10.1038/s41467-018-06020-8
Abstract: Dehydrogenative annulation reactions are among the most straightforward and efficient approach for the preparation of cyclic structures. However, the applications of this strategy for the synthesis of saturated heterocycles have been rare. In addition, reported… read more here.
Keywords: dehydrogenative annulation; annulation; synthesis saturated; alkenes diols ... See more keywords
Heterogeneous visible-light promoted dehydrogenative [4+2] annulation of benzothioamides and alkynes under aerobic conditions
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DOI: 10.1039/d3gc01329d
Abstract: The dehydrogenative [4+2] annulation is a step and atom-economical way to construct benzo-fused six-membered ring which are prevalent in natural products, pharmaceuticals and agrochemicals. Traditional protocols often require C-H activation... read more here.
Keywords: dehydrogenative annulation; light promoted; annulation; heterogeneous visible ... See more keywords