0000000001304810
AUTHOR
Ahmed Bari
Regio- and stereoselective synthesis of spiro-heterocycles bearing the pyrazole scaffold via [3+2] cycloaddition reaction
Abstract Herein we reported the utility of one-pot multicomponent based [3+2] cycloaddition reaction transformation to prepare a new two hybrids of spirooxindoles engrafted with pyrazole skeleton. Upon treatment of the electron-deficient olefins based pyrazole motif with in situ the generated azomethine ylides (AY) of sarcosine with the 6-chloro-isatin afforded spiroadducts. To enlighten the regio- and diastereo-selectivity of these spiroheterocycles, single crystal X-ray diffraction analysis was presented. Using Hirshfeld calculations, many short distance contacts such as O…H, Cl…H, N…H, H…C, C…C and Cl…S have a great impact on the molecular packing and the crystal stability of 8a and 8b. …
CCDC 2102639: Experimental Crystal Structure Determination
Related Article: Mohammad Shahidul Islam, Matti Haukka, Saied M. Soliman, Abdullah Mohammed Al-Majid, A.F.M.Motiur Rahman, Ahmed Bari, Assem Barakat|2022|J.Mol.Struct.|1250|131711|doi:10.1016/j.molstruc.2021.131711
CCDC 2102638: Experimental Crystal Structure Determination
Related Article: Mohammad Shahidul Islam, Matti Haukka, Saied M. Soliman, Abdullah Mohammed Al-Majid, A.F.M.Motiur Rahman, Ahmed Bari, Assem Barakat|2022|J.Mol.Struct.|1250|131711|doi:10.1016/j.molstruc.2021.131711