E. Pohl et al., STRUCTURE OF HYDRO-7A-BETA-METHYL-5-OXO-4-ALPHA-INDANCARBOXYLIC ACID METHYL-ESTER AT 153-K, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 1654-1655
The X-ray structure of xahydro-7abeta-methyl-5-oxo-4alpha-indancarboxy
lic acid methyl ester is reported, in which the six-membered ring adop
ts a pseudo chair conformation and the five-membered ring an envelope
conformation.