Perkin communications. A new method for the preparation of 1,5-dicarbonyl compounds from bicyclic ketals
作者:Jong-Gab Jun、Seigi Suh、Dong Gyun Shin
DOI:10.1039/p19890001349
日期:——
1,5-Dicarbonylcompounds have been prepared frombicyclicketals in high yield under mild conditions by using aluminium chloride–sodium iodide in methylene dichloride.
Stereoselective synthesis of cyclic ether compounds<i>via</i>reductive cleavage of bicyclic ketals
作者:Jong-Gab Jun
DOI:10.1002/jhet.5570340247
日期:1997.3
Bicyclic ketals in the 6,8-dioxabicyclo[3.2.1]octane system readily reacted with triethylsilane-boron tri-fluoride etherate at room temperature to give only the cis-tetrahydropyranol derivatives via C5-O6 bond cleavage. Three- and erythro-alcohols were prepared selectively from the endo- and exo-ketal, respectively. Dehydrated products also formed when the tertiary alcohol was involved under these
On the α-Bromodehydrogenation of 6, 8-Dioxabicyclo[3.2.1]Octanes
作者:Karen E. Bartelt
DOI:10.1080/00397919208019068
日期:1992.8
The room temperature reaction of 6,8-dioxabicyclo-[3.2.1]octanes with liquid bromine yielded 4-bromo- or 4,4-dibromo-6,8-dioxabicyclo[3.2.1]octanes in good yields.