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Photochemische Reaktionen. 39. Mitteilung. Photochemische Umwandlungen von endo ‐Tricyclo[4.3.1 2,5 .0]‐decadien‐(3,8)‐dion‐(7,10) und cis ‐8, 9‐Dihydroindenon
Author(s) -
Baggiolini E.,
Herzog E. G.,
Iwasaki S.,
Schorta R.,
Schaffner K.
Publication year - 1967
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19670500137
Subject(s) - chemistry , stereochemistry , medicinal chemistry
In boiling xylene the cyclopentadienedione 1 is thermally decarbonylated to cis ‐8,9‐dihydroindenone ( 8 ). This method avoids secondary reactions and allows the preparation of 8 in high yield.