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Autor:
Vaibhav P. Mehta, Ashish Dhamsaniya, Pratiksha Chhatbar, Kaushik Pambhar, Prachi Trivedi, Shahrukh Khan Safi, Anamik Shah
Publikováno v:
Tetrahedron Letters. 60:362-365
An unprecedented metal-free synthesis of 4-(methylthio)chromeno[4,3-c]pyrazol-3(2H)-one is reported via sequential one-pot desulfitative [5+1] hetero-annulation. The present strategy consists of one-pot sequential, base catalysed dithioketene formati