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Abs mbr+msa synt 1997

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Abs mbr+msa synt 1997

  1. 1. Thieme eJournals / Abstract Home Subject List Alphabetical List Help FAQ Highlights Deutsche Version Quick Search paper Contact Us Synthesis 1997; 1997(12): 1495-1498 DOI: 10.1055/s-1997-1369 © Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage. Go! Advanced Search >> Single Articles View Shopping Cart LogIn Username Password Log In A New and Efficient Synthesis of Pyridazin-3(2H)-ones via 1,3Dipolar Cycloaddition Moncef Msaddek1, Mohamed Rammah1, Kabula Ciamala2, Joël Vebrel2, Bernard Laude2 1 Département de Chimie, Faculté des Sciences et Techniques, Université du Centre, Route de Kairouan, 5000 Monastir, Tunisia 2 Laboratoire de Chimie et Electrochimie Moléculaire, Faculté des Sciences et Techniques, 16 Route de Gray, F-25030 Besançon, France 3-Arylidenebenzofuran-2(3H)-ones are obtained by condensation of aldehydes Ar1CHO with benzofuran-2(3H)-one. A mixture of stereoisomers (Z) and (E) was isolated. The reaction of diarylnitrilimines with the Z+E mixture or with each stereoisomer leads regio- and stereoselectively to cycloadducts which give, after acidic treatment, the same 5,6-diaryl-4-(ohydroxyphenyl)pyridazin-3(2H)-one 6, irrespective of the double bond geometry of the starting olefin. Acidic treatment of cycloadducts 4 and 5 gives quantitatively the pyridazin3(2-H)-ones 6 Content Full text (En PDF (268 kb) Table of Cont this Issue Other Issues: 1997 Issue Service Sample Issue (01/2011) Recommend Recommend Journal Instructions f Submit a Man More About T German Natio License Download Bibliographica Bookmark Register Now Connotea Forgot your password? Delicious Thieme eJournals is a service of the Thieme Medical Publishers, Inc. and Georg Thieme Verlag. © Georg Thieme Verlag KG Stuttgart New York. All rights reserved. Impressum / Disclaimer CiteULike