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The design of efficient and selective routes to pyridyl analogues of 3-oxo-3,4-dihydro-2H-1,4-(benzothiazine or benzoxazine)-6-carbaldehydes

✍ Scribed by Gerald Brooks; Steven Dabbs; David T. Davies; Alan J. Hennessy; Graham E. Jones; Roger E. Markwell; Timothy J. Miles; Nathan A. Owston; Neil D. Pearson; Tony W. Peng

Book ID: 104098114
Publisher: Elsevier Science
Year: 2010
Tongue: French
Weight: 514 KB
Volume: 51
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.07.095

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✦ Synopsis

This Letter describes the synthesis of challenging pyridyl analogues of 3-oxo-3,4-dihydro-2H-1,4-(benzothiazine or benzoxazine)-6-carbaldehydes. The six different routes described are high yielding, contain no major purification issues and have been used to give gram quantities of each aldehyde.

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