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Site Selectivity in [2+2] Photocycloadditions of Tricyclic ‘Diethenylbenzenes' to 2,3-Dimethylbut-2-ene

✍ Scribed by John Bethke; Paul Margaretha

Publisher
John Wiley and Sons
Year
2002
Tongue
German
Weight
107 KB
Volume
85
Category
Article
ISSN
0018-019X

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## Abstract On irradiation (350 nm) in the presence of excess 2,3‐dimethylbut‐2‐ene, the newly synthesized title compound 5 affords as main products the unexpected cyclopropylpyrrolidine 10 (50%) and the spiro‐oxetane 9 (25%).