Tetrahedron p. 2429 - 2438 (1983)
Update date:2022-08-04
Topics:
Schoenberg, Alexander
Singer, Erich
Stephan, Werner
Sheldrick, William S.
The compounds in the title (cf 1a, 1b and 2) react with various reagents, often under mild conditions, mostly by breaking of the central double bond.According to X-ray diffraction the central double bond of 2-(9-xanthylidene)indane-1,3-dione is inclined by 47.2 deg.The relationship between the structure and reactivity of the compounds in the title is discussed.
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