I found the field of Chemistry very interesting. Saw the article One-pot, solvent-free Pd(II)-catalyzed direct beta-C-H arylation of carboxamides involving anhydrides as substrates via in situ installation of directing group published in 2019. HPLC of Formula: C14H10O3, Reprint Addresses Babu, SA (corresponding author), Indian Inst Sci Educ & Res USER Mohali, Dept Chem Sci, Sect 81,Manauli PO, Manauli 140306, Punjab, India.. The CAS is 93-97-0. Through research, I have a further understanding and discovery of Benzoic anhydride
A one-pot, multicomponent-type, solvent-free Pd(II)-catalyzed direct beta-C-H activation/arylation of carboxamides involving anhydrides as substrates via in situ installation of directing group (DG) is reported. Typically, the DG-assisted beta-C-H activation/arylation of carboxamides is a two-step process comprising the installation of DG and Pd(II)-catalyzed C-H arylation. We attempted a multicomponent-type reaction comprising an anhydride, a DG (e.g. 8-aminoquinoline), an aryl iodide in the presence of the Pd(II) catalyst and an appropriate additive. Different anhydrides, DGs, aryl iodides, catalysts and additives were screened to reveal the scope of this multicomponent-type C-H arylation reaction process and various beta-C-H arylated carboxamides were obtained in satisfactory to good yields. (C) 2019 Elsevier Ltd. All rights reserved.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com