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ChemInform Abstract: Z- or E-Configurated γ-Alkylidenebutenolides from a 2-(Trimethylsiloxy)furan and Iodomethacrolein — Stereoselective Synthesis of Z- and E-Freelingyne.

✍ Scribed by F. VON DER OHE; R. BRUECKNER

Publisher
John Wiley and Sons
Year
2010
Weight
35 KB
Volume
29
Category
Article
ISSN
0931-7597

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✦ Synopsis

Alkylidenebutenolides from a 2-(Trimethylsiloxy)furan and Iodomethacrolein -Stereoselective Synthesis of Z-and E-Freelingyne.

-Via an aldol/β-elimination approach as key sequence the title products such as (V) and (VI) are prepared. It is noteworthy that an earlier described method with triflic anhydride in pyridine for the elimination step is not successful in this case. -(VON DER

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