Jp. Sestelo et al., Synthesis of polycyclic structures by Diels-Alder reaction using inner-outer-ring 1,3-bis[trimethylsilyloxy]dienes, TETRAHEDR L, 40(5), 1999, pp. 985-988
In this paper we describe regioselective one-pot preparations of inner-oute
r-ring 1,3-bis[trimethylsilyloxy]dienes and their Diels-Alder reactions wit
h electron-deficient dienophiles. The dienes were prepared in quantitative
yield, and the Diels-Alder reactions proceeded smoothly, regioselectively a
nd with good yields, allowing efficient construction of highly functionaliz
ed polycyclic skeletons such as naphthofurans, benzofurans and various carb
ocycles present in natural and non-natural products. (C) 1999 Elsevier Scie
nce Ltd. All rights reserved.