113386-25-7Relevant articles and documents
An effective bismuth-catalyzed benzylation of arenes and heteroarenes
Rueping, Magnus,Nachtsheim, Boris J.,Ieawsuwan, Winai
, p. 1033 - 1037 (2007/10/03)
A highly efficient Bi(OTf)3-catalyzed benzylation of arenes and heteroarenes has been developed. The mild reaction conditions, high yields, operational simplicity and practicability, broad scope, and remarkably low catalyst loading render this environment friendly process an attractive approach to diarylmethane derivatives. The extension to an intramolecular variant of this procedure provides a valuable route to substituted fluorenes.
Synthesis of some Thiophenium Bis(t-butoxycarbonyl)methylides
Bowles, Timothy,Jones, Ray,Porter, Alexander E. A.,Rechka, Josef A.,Rzepa, Henry S.,Williams, David J.
, p. 1023 - 1028 (2007/10/02)
Thiophene derivatives react with di-t-butyl diazomalonate in the presence of rhodium(II) carboxylates to yield thiophenium bis(t-butoxycarbonyl)methylides.Rhodium(II) hexanoate is a more efficient catalyst than rhodium(II) acetate, shortening reaction times and increasing yields of the ylides.Series of 2-halogeno-, 2-alkyl-, 2-benzyl-5-halogeno-, and 2-benzyl-5-alkyl-thiophenium ylides are described.Whilst 2-methyl-, 2-ethyl-, and 2-isopropyl-thiophenes readily form the ylides in good yield, 2-t-butylthiophene appears to undergo further reaction to yield 1,3-bis-t-butoxycarbonyl-2-(3-t-butyl-6,6-bis-t-butoxycarbonyl-2-thioniabicyclohex-3-en-2-yl)methanide (2) whose structure has been confirmed by X-ray crystallography.
BASE CLEAVAGE OF SUBSTITUTED - AND -TRIMETHYLSILANE. STABILIZATION OF CARBANIONIC CENTRES BY 2-THIENYL AND 2-FURYL GROUPS
Eaborn, Colin,Pirazzini, Graziella,Seconi, Giancarlo,Ricci, Alfredo
, p. 339 - 346 (2007/10/02)
Rates of cleavage by NaOMe-MeOH at 25 deg C have been determined for (2-thienyl)2CHSiMe3 and for the compounds Ph(2-thienyl)CHSiMe3 and Ph(2-furyl)CHSiMe3 and some of their derivatives with a substituent in the m- or p-position of the phenyl group or the
