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Efficient synthesis of 2,3-trans-tetrahydropyrans and oxepanes: Rearrangement-ring expansion of cyclic ethers having a chloromethanesulfonate

✍ Scribed by Nobuyuki Hori; Kazuo Nagasawa; Takeshi Shimizu; Tadashi Nakata

Book ID: 104260932
Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 249 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00134-3

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✦ Synopsis

Zn(OAc)2-treatment of cyclic ethers having a chloromethanesulfonate as an efficient leaving group on the side chain effected a stereoselective rearrangement reaction to give the ring-expanded ethers, 2,3-trans-tetrahydropyrans and oxepanes, in good yield.

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