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Donor-substituted furans and 1,2-bis(trifluoromethyl)ethylene-1,2-dicarbonitrile: The hidden cycloadditions

✍ Scribed by Rolf Huisgen; Grzegorz Mloston

Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
364 KB
Volume
35
Category
Article
ISSN
0040-4039

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## Abstract The title compound (short version: BTE) occurs in (__E__)‐ and (__Z__)‐isomers (both with b.p. of __ca.__ 100Β°) which equilibrate with nucleophilic catalysts. Both undergo (2+2) cycloadditions with methyl vinyl ether at 25Β°. Three stereogenic centers in the cyclobutanes led to four __ra