Synthesis of enantiomerically pure tributylstannylcyclopropanes through lipase-catalyzed reaction
1998
Abstract Synthesis of optically active cyclopropylstannanes was accomplished through two synthetic pathways using lipase-catalyzed reaction. A direct resolution of racemic hydroxyl cyclopropylstannanes using PCL or LPL and a converting method from optically pure vinylstannanes. They were prepared via PCL-catalyzed reaction, and afforded five types of optically pure new tributylstannylcyclopropanes. Synthesis of an optically active biscyclopropane has also been demonstrated via palladium-catalyzed homocoupling reaction of tributylstannylcyclopropane.
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