Reactivity of anionic nucleophiles in ionic liquids and molecular solvents
作者:Cecilia Betti、Dario Landini、Angelamaria Maia
DOI:10.1016/j.tet.2007.12.009
日期:2008.2
The nucleophilicreactivity of a representative series of anions has been measured in [hmim][ClO4] 3i, [hm2im][ClO4] 3′i, and [hmim][PF6] 3l ILs in the reaction with n-alkyl methanesulfonates and compared with that found in common molecular solvents (MeOH, DMSO, PhCl). The reactivity is found to depend on both the imidazolium cation–anion interaction and the specific solvation by water present in the
Polymerizable composition for polythiourethane optical material, polythiourethane optical material obtained from the polymerizable composition, and polymerization catalyst for polythiourethane optical material
申请人:Mitsui Chemicals, Inc.
公开号:EP2407498A2
公开(公告)日:2012-01-18
The polymerizable composition for a polythiourethane optical material of the present invention includes (A) a polymerization catalyst for a polythiourethane optical material, (B) at least one compound selected from an isocyanate compound and an isothiocyanate compound, and (C) a compound containing one or more mercapto groups, wherein said polymerization catalyst for a polythiourethane optical material (A) includes (a1) a zinc compound, and (a4)a compound represented by the following general formula (4).
Giorgi, Marco De; Landini, Dario; Maia, Angelamaria, Synthetic Communications, 1987, vol. 17, # 5, p. 521 - 534
作者:Giorgi, Marco De、Landini, Dario、Maia, Angelamaria、Penso, Michele
DOI:——
日期:——
POLYMERIZABLE COMPOSITION FOR POLYTHIOURETHANE OPTICAL MATERIAL, POLYTHIOURETHANE OPTICAL MATERIAL OBTAINED FROM SAME POLYMERIZABLE COMPOSITION, AND POLYMERIZATION CATALYST FOR POLYTHIOURETHANE OPTICAL MATERIAL