2117-34-2Relevant articles and documents
Accessing Two-Coordinate ZnII Organocations by NHC Coordination: Synthesis, Structure, and Use as π-Lewis Acids in Alkene, Alkyne, and CO2 Hydrosilylation
Specklin, David,Hild, Frédéric,Fliedel, Christophe,Gourlaouen, Christophe,Veiros, Luis F.,Dagorne, Samuel
, p. 15908 - 15912 (2017)
Discrete two-coordinate ZnII organocations of the type (NHC)Zn?R+ are reported, thanks to NHC stabilization. In preliminary reactivity studies, such entities, which are direct cationic analogues of long-known ZnR2 species,
Chemoselective Deoxygenation of 2° Benzylic Alcohols through a Sequence of Formylation and B(C6F5)3-Catalyzed Reduction
Oestreich, Martin,Richter, Sven C.
supporting information, p. 2103 - 2106 (2021/07/22)
A sequence of formylation and B(C6F5)3-catalyzed reduction of the resulting formate with Et3SiH enables the chemoselective deoxygenation of secondary benzylic alcohols. Primary benzylic and tertiary non-benzylic alcohols are not reduced by this protocol. The formyl group fulfills a double role as activator and self-sacrificing protecting group. The deoxygenation of these formates is fast and can be carried out in the presence of other potentially reducible groups. Neighboring-group participation was found in the deoxygenation of certain diol motifs.
Catalytic Disproportionation of Formic Acid to Methanol by using Recyclable Silylformates
Cantat, Thibault,Chauvier, Clément,Imberdis, Arnaud,Thuéry, Pierre
supporting information, p. 14019 - 14023 (2020/06/09)
A novel strategy to prepare methanol from formic acid without an external reductant is presented. The overall process described herein consists of the disproportionation of silyl formates to methoxysilanes, catalyzed by ruthenium complexes, and the production of methanol by simple hydrolysis. Aqueous solutions of MeOH (>1 mL, >70 percent yield) were prepared in this manner. The sustainability of the reaction has been established by recycling of the silicon-containing by-products with inexpensive, readily available, and environmentally benign reagents.
Hydrogenation of silyl formates: sustainable production of silanol and methanol from hydrosilane and carbon dioxide
Koo, Jangwoo,Kim, Seung Hyo,Hong, Soon Hyeok
, p. 4995 - 4998 (2018/05/23)
A new process for simultaneously obtaining two chemical building blocks, methanol and silanol, was realized starting from silyl formates which can be derived from silane and carbon dioxide. Understanding the reaction mechanism enabled us to improve the reaction efficiency by the addition of a small amount of methanol.