Living polymerization of arylisocyanide initiated by the phenylethynyl palladium(ii) complex

Abstract

An air-stable phenylethynyl palladium(ii) complex was unexpectedly found to initiate the living polymerization of phenyl isocyanide.

Grafting polymerization of single‐handed helical poly(phenyl isocyanide)s on graphene oxide and their application in enantioselective separation

“…The monomers M 1 (( R or S )‐decyl 2‐(4‐isocyanobenzamido)propanoate), M 2 ( tert ‐butyl 4‐isocyanobenzoate), trans ‐Pd(PEt 3 ) 2 Cl 2 , and polymer P1 ( M n = 28,364, M w / M n = 1.21) were synthesized according to the reported method . Potassium permanganate (KMnO 4 ), hydrochloric acid (HCl), 98% sulfuric acid (con.…”

“…In previous studies, we developed a series of novel alkyne‐palladium(II) complexes which could promote the polymerization of various isocyanides in a living/controlled fashion, affording well‐defined polyisocyanides in high yields with controlled molecular weight ( M n s), narrow molecular weight distribution ( M w / M n s), and high stereoregularity . Using this family of versatile catalysts, a number of polyisocyanides with single‐handed helical sense can be facilely prepared .…”

Polymerizations Mediated by Well‐Defined Rhodium Complexes

“…Arylisocyanides have long attracted attention in the polymer community because of the propensity of materials formed from such monomers to form helical structures . The transition‐metal‐mediated controlled (co)polymerization of arylisocyanides is well‐documented, with complexes based on Ni II , Pt II , and certain dinuclear Pt II ‐Pd II species being particularly useful. In the context of this Minireview, we will highlight examples of Rh I ‐aryl complexes that have been shown to be effective in promoting the (co)polymerization of bulky arylisocyanides…”

Recent Advances in Palladium-Catalyzed Isocyanide Insertions

“…Nickel-catalyzed polymerization of isocyanides to helical polyimines is extensively reported in literature [11,12]. Recently, significant advances have been made in using palladium catalysis for similar transformations to polyimines [13][14][15][16][17][18]. Due to the nature of this transformation, affording polymeric structures rather than small molecules, these examples will not be treated in this review.…”