Book Description Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the tricyclooctanone approach to polyquinane syntheses[ll the photochemical rearrangement of bicyclo[2.2.2]octenone, 1a 2a,[2J has been the initial key reaction providing tricyclo 2 [3.3.0.0 ' S]octan-3-one as a chiral building block.[3-SJ This reaction - an oxadi-n-methane (ODPM) process - and the 1,3-acyl shift (AS) forming the cyclobutanone 3 are quite generally the characteristic re arrangement paths undergone by ~,~-unsaturated ketones (~,~-UKs) upon triplet sensitization and direct excitation with ultraviolet light, respectively. R' R' hv hv R~O ~ ~ (sens) WO ~ R ONR R 1a-c 2a-c 3a-c a R=R'=H b R = CH , R'= H 3 c R = R'= CH 3 As a polyvalent building block, the enantiomers of which are readily accessible from cheap bulk chemicals such as benzene and its derivatives, the parent system 1a and three younger generations of its class (Sections 3.1. - 3.4.) have no equal among synthetically useful photochemical rearrangements. 2. THE PHOTOCHEMISTRY OF ~,~-UNSATURATED KETONES The literature dealing with the spectroscopy and photo chemistry of ~,~-UKs has been exhaustively and critically reviewed around 1975 by Dauben et al.[6l and Houk,[7J and in 1980 by Schuster.[SlI1 The 1,3-AS was first observed on direct excitation of 1) For more recent papers on i3,~-UK photochemistry see [9-24]. 64 ~ R' hv ~o hv ., 368 pp. Englisch. Seller Inventory # 9783540165262

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Modern Synthetic Methods 1986

Published by Springer Berlin Heidelberg (1986)

ISBN 10: 3540165266 ISBN 13: 9783540165262

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Book Description Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Sponsored and organized by the Association of Swiss ChemistsSound and Light in Synthesis.- Ultrasound in Synthesis.- Photochemically Generated Building Blocks I.- Photochemically Generated Building Blocks II The Tricyclooctanone Approach.- Synthesis of . Seller Inventory # 4883094

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Modern Synthetic Methods 1986: Conference Papers of the International Seminar on Modern Synthetic Methods 1986, Interlaken, April 17th/18th 1986

Scheffold, R. (Editor) / Brown, H.C. (Assistant) / Demuth, M. (Assistant) / Helmchen, G. (Assistant) / Schaffner, K. (Assistant) / Seebach, D. (Assistant) / Suslick, K.S. (Assistant)

Published by Springer-Verlag (1986)

ISBN 10: 3540165266 ISBN 13: 9783540165262

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Book Description Paperback. Condition: Brand New. 368 pages. 8.27x5.83x0.83 inches. In Stock. Seller Inventory # x-3540165266

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Modern Synthetic Methods 1986

Published by Springer (1986)

ISBN 10: 3540165266 ISBN 13: 9783540165262

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Book Description Condition: New. Print on Demand pp. 368 25:B&W 5.83 x 8.27 in or 210 x 148 mm (A5) Perfect Bound on White w/Gloss Lam. Seller Inventory # 44788328

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