Tetrahedron Letters p. 205 - 208 (1996)
Update date:2022-08-10
Topics:
Sugahara, Tsutomu
Ogasawara, Kunio
Diels-Alder reaction between cyclopentadiene and 4-tert-butoxycyclopentenone occurs in a contra-steric manner to give more hindered endo-3-tert-butoxydicyclopentadiene as the major product (~ 15:1) in excellent yield. The product has been transformed into either (±)- and (-)-3-oxodicyclopentadiene or meso 3,5-endo-dihydroxy-4,5-dihydrodicyclopentadiene efficiently.
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