Thermal [3 + 2] cycloaddition of N-iminoquiazoline ylides with allenoates for synthesis of tetrahydropyrazoloquinazoline derivatives

Add time:07/27/2019    Source:sciencedirect.com

The thermal [3 + 2] cycloaddition reaction of N-iminoquiazoline ylides with allenoates worked efficiently under mild reaction conditions to provide a variety of tetrahydropyrazoloquinazoline derivatives in good to excellent yields and moderate to excellent diastereoselectivities.

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