Synthons for the Development of New Organophosphorus Functional Materials

A Terminal Chlorophosphinidene Complex

“…For example, stoichiometric phosphirane and phosphirene synthesis has been demonstrated for transient and some isolable electrophilic phosphinidene complexes. [4d],…”

“…More recently, strained, bicyclic phosphorus heterocycles, like dibenzo‐7λ 3 ‐phosphanorbornadienes that release P–R upon in situ retro Diels–Alder reaction, were heavily exploited as phosphinidene synthons by the Cummins group. [1c], In this context, terminal phosphinidene complexes (L n M=P–R) attracted interest as PR‐transfer reagents . For example, stoichiometric phosphirane and phosphirene synthesis has been demonstrated for transient and some isolable electrophilic phosphinidene complexes.…”

An Azophosphine Synthetic Equivalent of Mesitylphosphaazide and Its 1,3-Dipolar Cycloaddition Reactions

“…Phosphorus-containing heterocycles, once merely considered laboratory curiosities, are valued functional components that find application in a variety of fields, ranging from transition-metal catalysis to optoelectronic materials. − However, general and mild approaches to synthesizing such heterocycles remain a challenge. As a result, there is growing interest in the development of novel synthons that may be used to incorporate low-coordinate phosphorus species into heterocycles via cycloaddition reactions. , …”

“…As a result, there is growing interest in the development of novel synthons that may be used to incorporate low-coordinate phosphorus species into heterocycles via cycloaddition reactions. 5,6 Synthons of multiply bonded P−P and P−N species are particularly effective building blocks in the construction of novel phosphorus-containing heterocycles. For example, the solution-phase cycloaddition chemistry of diphosphorus (P 2 ) was first achieved using the niobium diphosphaazide complex (η 2 -Mes*NPP)Nb(N[CH 2…”

Muonium Addition to a peri‐Trifluoromethylated 9‐Phosphaanthracene Producing a High‐Energy Paramagnetic π‐Conjugated Fused Heterocycle

“…Attempts to exchange the skeletal sp 2 carbon atom with the heavier p-block elements have been performed because the low band gap of the heavier double bonds [1,2] would promote attractive functional characteristics of the heavier p-conjugated cyclic systems. [3,4] 9-Phosphaanthracene is one of the heavier congeners of anthracene and has been studied since 1967. [5][6][7] Whereas most of the 1,8-non-substituted 9-phosphaanthracenes are labile, we recently established synthesis of air-tolerant 10-aryl-9-phosphaanthracenes by installing trifluoromethyl (CF 3 ) groups into the peri positions (1,8positions).…”