108858-14-6Relevant articles and documents
Arylation of aryl- and diarylbismuth arenesulfonates with pentaarylantimony
Sharutin,Egorova,Pavlushkina,Ivanenko
, p. 1925 - 1926 (2002)
Pentaarylantimony Ar3Sb (Ar = Ph, p-Tol) arylates diarylbismuth arylsulfonates Ar2BiOSO2Ar' (Ar' = C6H 4Me-4; C6H3Me2-2,4, C 6H3Me2-2,
Investigation into the Organobismuth Dismutation and Its Use for Rational Synthesis of Heteroleptic Triarylbismuthanes, Ar12Ar2Bi
Hyvl, Jakub,Louis-Goff, Thomas,Rheingold, Arnold L.
, (2020/03/16)
Organobismuthanes undergo dismutation, a substituent scrambling process, complicating the synthesis of unsymmetrically trisubstituted bismuthanes of the general formula Ar12Ar2Bi. Although the dismutation is a mechanistically diverse phenomenon, at ambient or lower temperatures, dismutation is triggered mainly by an electrophilic bismuth source. Therefore, the selection of the electrophile, Ar12BiX (X = tosylate or iodide if Ar1 = mesityl) or Ar1BiX2 (X = tosylate), and its use in low concentration during the reaction is key to suppressing the dismutation, leading to new, streamlined protocols utilizing direct arylations of Ar12BiX (X = OTs or I) or Ar1Bi(OTs)2 with organozincs affording heteroleptic triarylbismuthanes Ar12Ar2Bi.