Rs. Ward et al., SYNTHESIS OF DIVERSELY FUNCTIONALIZED DIBENZYLBUTYROLACTONES AND ARYLTETRALINS FROM SILYLATED CYANOHYDRIN ANIONS, Journal of chemical research. Synopses (Print), (5), 1998, pp. 226
The aryltetralins 7a and 7b and the keto-lactone 8 are synthesised by
cyclisation and deprotection of the conjugate addition products 4a and
4b; the structure of 7b was unambiguously confirmed by an X-ray struc
tural analysis.