Tetrahedron Letters p. 1875 - 1878 (1984)
Update date:2022-08-05
Topics:
Caramella, P.
Albini, Marinone F.
Vitali, D.
Rondan, Nelson G.
Wu, Yun-Dong
et al.
Benzonitrile oxide cycloadds preferentially anti to the substituents of cis-3,5-di-X-cyclopentenes, where X= OMe, OAc, OCOPh, Br, Cl, and OH.Higher stereoselectivities are found for cis-2,5-di-X-2,5-dihydrofurans.The origins of these selectivities, and contrasts with acyclic and cyclobutene analogs, are described.
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