Addition of functionalized zinc copper reagents to acetylenic esters: Synthesis of 2-carboalkoxy cyclohexenones
作者:Michael T. Crimmins、Sujuan Huang、Lisa E. Guise、D. Borden Lacy
DOI:10.1016/0040-4039(95)01485-z
日期:1995.9
Conjugate addition of the zinc-copper reagent derived from ethyl 4-iodobutyrate to acetylenic esters in the presence of TMSCI and HMPA results in cyclization and formation of 3-alkyl-2-carboalkoxycyclohexenones in good yields.
Radical fragmentation of cyclobutanes: An approach to medium ring fused carbocycles
作者:Michael T. Crimmins、Sujuan Huang、Lisa E. Guise-Zawacki
DOI:10.1016/0040-4039(96)01433-5
日期:1996.9
The combination of a zinc-copper mediated conjugate addition-cyclization, an intramolecular [2+2] photocycloaddition, and a radical fragmentation reaction provides access to a variety of medium ring fused carbocyclic systems in good overall yields.