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Palladium-catalyzed synthesis of dienynes related to vitamin D from enol triflates
Affiliation:1. Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;2. Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt;3. Pharmacology and Toxicology Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;4. Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;1. Science and Technology Application and Research Center, Siirt University, Siirt, 56100, Turkey;2. Department of Chemistry, Faculty of Science, University of Dicle, 21280, Diyarbakir, Turkey;3. Science and Technology Application and Research Center (DUBTAM), Dicle University, Diyarbakir, 21280, Turkey;4. Department of Chemical Engineering, Kazakh-British Technical University, 050000, Almaty, Kazakhstan;5. Department of Chemical Technology, Institute of Chemical Engineering, Kazakh National Research Technical University After K. I. Satpayev, 050000 Almaty, Kazakhstan;6. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, 21280, Turkey;1. Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India;2. College of Pharmacy, Chapman University, Orange, CA 92866, USA;3. School of Physical Sciences (SPS), Jawaharlal Nehru University, Delhi 110067, India
Abstract:This note describes a simple synthesis of Lythgoe-type dienynes based on palladium catalyzed coupling of kinetic Grundmann's ketone enol triflate and acetylenic compounds containing the vitamin D A-ring fragment.
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