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Obituary
Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Note | Regular issue | Vol 68, No. 3, 2006, pp.549-559
Published online, 21st February, 2006■ High-yielding Microwave Assisted Synthesis of Quinoline and Dihydroquinoline Derivatives under Solvent-free Conditions
Published online, 21st February, 2006
DOI: 10.3987/COM-06-10668
■ High-yielding Microwave Assisted Synthesis of Quinoline and Dihydroquinoline Derivatives under Solvent-free Conditions
D. Subhas Bose* and Racherla Kishore Kumar
*Organic Chemistry Division III, Fine Chemicals Laboratory, Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
Abstract
A mild and efficient solvent-free method has been developed by two different approaches for the synthesis of quinoline and dihydroquinoline derivatives: (i) one-pot reaction of anilines with alkyl vinyl ketones (Skraup reaction) (ii) between various acetophenones and 2-aminoacetophenone (Friedländer reaction) using stable and effective heterogeneous catalyst potassium dodecatangestocobaltate (25 mol %) (PDTC) under microwave irradiation in high yields.
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