The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-(di-tert-Butylphosphino)-1′,3′,5′-triphenyl-1’H-1,4′-bipyrazole(SMILESS: CC(P(C1=CC=NN1C2=C(C3=CC=CC=C3)N(C4=CC=CC=C4)N=C2C5=CC=CC=C5)C(C)(C)C)(C)C,cas:894086-00-1) is researched.COA of Formula: C7H7BrO. The article 《Pd2dba3/Bippyphos: A Robust Catalyst System for the Hydroxylation of Aryl Halides with Broad Substrate Scope》 in relation to this compound, is published in Advanced Synthesis & Catalysis. Let’s take a look at the latest research on this compound (cas:894086-00-1).
A mixture of tris(dibenzylideneacetone)dipalladium(0) (Pd2dba3) and 5-(di-tert-butylphosphino)-1′,3′,5′-triphenyl-1’H-[1,4′]bipyrazole (Bippyphos) is shown to be a robust and efficient catalyst system for the hydroxylation of structurally diverse (hetero)aryl halides under mild conditions and with broad substrate scope. Included in this reactivity survey is the successful synthesis of substituted benzofurans and related heteroat. derivatives, which are formed via the hydroxylation of 2-haloalkynylarenes. Notably, a significant number of the reactions reported herein proceed at room temperature, and we have demonstrated that it is possible to conduct reactions on the benchtop under air using unpurified solvents with negligible loss in reactivity vs. related transformations conducted under inert atm. conditions. We also report herein the first crystallog. characterized (Bippyphos)Pd(II) complex, which confirms the ability of this synthetically useful ligand to adopt a bidentate binding motif in a manner similar to Buchwald’s biarylphosphine ligand class.
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