Mb. Gravestock et al., STEREOSELECTIVITY OF INTRAMOLECULAR CYCLIZATIONS OF NITRONES DERIVED FROM 3-OXAHEPT-6-ENALS, Journal of the Chemical Society. Perkin transactions. I, (13), 1994, pp. 1661-1663
Intramolecular cycloadditions of the nitrones 9 and 14 show moderate t
o good stereoselections in favour of the cis-fused diastereoisomers 10
or 16, respectively.