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The Preparation of Certain Alkenes, Alkadienes and Alkynes 1,2

โœ Scribed by Mulliken, Samuel P.; Wakeman, Reginald L.; Gerry, Harold T.

Book ID
126018817
Publisher
American Chemical Society
Year
1935
Tongue
English
Weight
359 KB
Volume
57
Category
Article
ISSN
0002-7863

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Convenient method for the preparation of
Convenient method for the preparation of 1-phenylthio-3-alken-1-ynes and 4-hydroxy-1-phenylthio-1,2-alkadienes from a common precursor
โœ Atsushi Ogawa; Kazunari Sakagami; Akiko Shima; Hitoshi Suzuki; Satsuki Komiya; Y ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 75 KB

Hydroxy-1-phenylthio-2-alkynes (5) reacted with dihydropyran to afford the corresponding 4-tetrahydropyranyloxy derivatives which, on treatment with KHMDS, gave a mixture of (E)-and (Z)-1-phenylthio-3-alken-1-ynes, with the former predominant. When MeLi was used in the place of KHMDS, the (Z)-isomer