Catalytic Asymmetric Cyclopropanation with Diazooxindole

[摘要]：The first catalytic asymmetric cyclopropanation using styrene and diazooxindole was achieved with Rh-2(S-PTTL)(4). The reaction proceeded smoothly with 1 mol% catalyst loading to provide a good yield of the biologically important spiro-cyclopropyloxindole product with moderate to good enantioselectivity and excellent diastereoselectivity.

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