The Reaction of <i>N</i>-Isocyaniminotriphenylphosphorane with Cyclopentanone and A Primary Amine in the Presence of An <i>E</i>-Cinnamic Acid Derivative

Ahankar, Hamideh; Ramazani, Ali; Ahmadi, Yavar

doi:10.1080/10426507.2014.903488

Cited by 9 publications

(2 citation statements)

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“…The procedure is fast, high yielding, and very clean, as the only byproducts are water and TPPO. Very soon, the scope of the reaction was extended to the use of cinnamic, − phenylacetylene, − and peptidic , acids, while primary ,− and peptidic amines , also participate, although giving slightly lower yields. Substituted benzyldehydes, , aromatic dialdehydes, furfural, acetaldehyde, , and cinnamaldehyde , readily react as carbonyl components.…”

Section: Oxadiazole Synthesis By Four-component Reactionsmentioning

confidence: 99%

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One Reacts as Two: Applications of N-Isocyaniminotriphenylphosphorane in Diversity-Oriented Synthesis

et al. 2020

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N-Isocyaniminotriphenylphosphorane (NIITP) is a functionalized isonitrile that has been extensively applied in a variety of organic reactions during the last two decades. This Review summarizes the most important applications in organic synthesis of this versatile reactant, with the focus posed on mechanistic and methodological aspects allowing the generation of molecular diversity. NIITP combines the reactivity of isonitriles with that of phosphoranes to enable chemical transformations employed in the construction of compound libraries. Here, we cover from the initial applications of NIITP in the Nef isocyanide reaction to further derivations that render a variety of heterocyclic scaffolds. The presence of the isonitrile moiety in this singular compound makes possible the double addition of nucleophiles and electrophiles, which followed by inter(intra)molecular aza-Wittig type transformations enable several multicomponent and tandem processes. In particular, we stress the impact of NIITP in oxadiazole chemistry, from the early two-component transformations to recent examples of multicomponent reactions that take place in the presence of suitable electrophiles. In addition, we briefly describe the role of NIITP chemistry in generating skeletal and conformational diversity in cyclic peptides. The reaction of NIITP with alkynes is thoroughly revised, with particular emphasis on silver-catalyzed processes that have been developed in the last years. Biomedicinal applications of some reaction products are also mentioned along with a perspective of future applications of this reactant.

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Section: Oxadiazole Synthesis By Four-component Reactionsmentioning

confidence: 99%

“…Substituted benzyldehydes, , aromatic dialdehydes, furfural, acetaldehyde, , and cinnamaldehyde , readily react as carbonyl components. On the other hand, ketones are restricted to be cyclic ,− or electron-deficient α-halo ketones, , α-acyl(thi)oxy propanones, ,,, and biacetyl …”

Section: Oxadiazole Synthesis By Four-component Reactionsmentioning

confidence: 99%