Abstract
In this paper, phosphine‐catalyzed [3 + 3] annulation of Morita–Baylis–Hillman carbonates with C,N‐cyclic azomethine imines has been achieved. The reaction worked smoothly under mild conditions to afford 4,6,7,11b‐tetrahydro‐1H‐pyridazino[6,1‐a]isoquinoline derivatives in high yields with good to excellent diastereoselectivities.
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