Tricyclo[4.2.2.01,6]decane-tricyclo[4.2.2.01,5]decane interconversions. [4.2.2]propellane rearrangements and a nonphotochemical propellane synthesis
作者:Philip E. Eaton、Patrick G. Jobe、Kayson Nyi
DOI:10.1021/ja00541a077
日期:1980.10
SPIRO-CONDENSED CYCLOHEXANE DERIVATIVES AS HSL INHIBITORS USEFUL FOR THE TREATMENT OF DIABETES
申请人:F.Hoffmann-La Roche AG
公开号:EP2488493A1
公开(公告)日:2012-08-22
Robinson annulation of 2-hydroxymethylene-ketones. A new route to spiro-diketones
作者:V. Dave、J. S. Whitehurst
DOI:10.1039/p19730000393
日期:——
The adducts formed from methyl vinyl ketone and the 2-hydroxymethylene derivatives of cyclic ketones of ring sizes 5, 6, 7, and 1 2 have been cyclised to spiro-ketones containing the same number of carbon atoms. Cyclisation under mild conditions gives ketols, the constitution and stereochemistry of which have been investigated. Methanol containing anhydrous calcium chloride converts the adducts of ring