Chemical and Pharmaceutical Bulletin p. 1621 - 1628 (1995)
Update date:2022-09-26
Topics:
Kotera
Ishii
Sakamoto
Photocyclization reactions (λ = 254 nm) of λ-methyl δ-(4-hydroxybutyl) and δ-(4-hydroxypentyl) α,β-unsaturated γ,δ-epoxy nitriles gave spiroketals and spiroethers diastereoselectively, whereas reaction of δ-(6- hydroxyhexyl) nitrile afforded no cyclization product. In addition, photocyclization of nitrile bearing a carboxyl group in the δ-side-chain afforded spirolactone.
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(1996)Doi:10.1016/S0040-4039(00)76163-6
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(1996)Doi:10.1248/cpb.44.55
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(1996)
