Catalyst and base free aza-Michael addition reaction: Synthesis of poly-substituted 4-pyrazole based benzopyrans

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DOI:10.1016/j.tetlet.2022.153762
作者：Tapaswini Das,?Seetaram Mohapatra,?Nilima Priyadarsini Mishra,?Sabita Nayak
文献类型：期刊论文
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Elsevier

Abstract：An efficient and catalyst free protocol has been disclosed for aza-Michael addition reaction of pyrazoles with 2-aryl-3-nitro-2H-chromene derivatives, which provides synthetically important

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