ISSN:
1434-4475
Keywords:
s-Hydrindacen-1-one and derivates
;
Cyclisation
;
2,2′-Spirobiindane-1,1′-diones
;
2,2′-Spirobiindane-1-ones
;
2,2′-Spirobiindanes
;
1H nmr spectra
;
Mass spectra
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The title compound6 a was prepared by cyclisation of the diacid4 b. The diester4 a of4 b was synthesized by alkylation of2 with3 and following Retro-Claisen-reaction. After catalytic reduction of6 a to8 a two identical substituents were introduced byFriedel-Crafts-reaction (28). By transformation of the acetylgroups several other derivates (29–36) could be obtained. The unsymmetrical compounds (e.g.21) were prepared from20, whose precurser was the spiroketon10 a.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00809214
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