71491-60-6Relevant articles and documents
Preparation of 2-zincio-l,3-dithianes and di(l,3-dithian-2-yl)zinc and their reaction with highly functionalized halides and a,/?-unsaturated carbonyl compounds
Cere, Vanda,De Angelis, Silvia,Pollicino, Salvatore,Ricci, Alfrede,Reddy, Ch. Kishan,Knochel, Paul,Cahiez, Gerard
, p. 1174 - 1178 (1997)
The title compounds were obtained by simple transmetallation of the corresponding lithium derivatives with ZnCl2 or ZnBr2. Contrary to 2-lithio-l,3-dithianes, 2-zincio-l,3-dithianes can react with a number of electrophiles bearing reactive functional grou
Replacement of HMPA in samarium diiodide promoted cyclizations and reactions of organolithium compounds
Berndt, Mathias,Hoelemann, Alexandra,Niermann, Andre,Bentz, Christoph,Zimmer, Reinhold,Reissig, Hans-Ulrich
experimental part, p. 1299 - 1302 (2012/04/04)
Tripyrrolidinophosphoric acid triamide (TPPA) can replace carcinogenic HMPA as a Lewis basic additive in many reactions involving samarium ketyls. In most cases, yields and selectivities of cyclizations of (het)aryl, alkenyl, and alkynyl ketones are simil
Quinuclidine N-oxide: A potential replacement for HMPA
O'Neil, Ian A.,Lai, Justine Y. Q.,Wynn, Duncan
, p. 59 - 60 (2007/10/03)
The use of quinuclidine N-oxide as a replacement for HMPA is described.
