16197-82-3Relevant articles and documents
Zirconocene bis(perfluorooctanesulfonate) s-catalyzed highly efficient synthesis of 1,3,5-triaryl benzene via cyclotrimerization of ketones
Zhang, Guo Ping,Qiu, Ren Hua,Xu, Xin Hua,Zhou, Hai Hui,Kuang, Ya Fei,Chen, Si Hai
, p. 858 - 864 (2012)
Air-stable zirconocene bis(perfluoroctanesulfonate) s [Cp 2Zr]OSO2C8F17) 2] (1) with high Lewis acidity and high thermal stability was prepared by the reaction between Cp2ZrCl2 a
A simple Lewis acid induced reaction of phenols with electrophiles: Synthesis of functionalized 4H-chromenes and ortho-benzylphenols
Sreenivasulu, Chinnabattigalla,Thadathil, Ditto Abraham,Pal, Sumit,Gedu, Satyanarayana
, p. 112 - 122 (2019/11/19)
Lewis acid ZnCl2 promoted cyclization protocol to 4H-chromenes is accomplished, using readily available phenols and acetophenones as starting materials. Interestingly, the process is feasible under the solvent free environment. Synthesis of a variety of 4H-chromenes have been accomplished using this strategy. In addition, this concept is extended to the synthesis of ortho-benzylphenols by treating phenols either with styrenes or secondary benzylic alcohols.
Chiral 1,3,2-Diazaphospholenes as Catalytic Molecular Hydrides for Enantioselective Conjugate Reductions
Miaskiewicz, Solène,Reed, John H.,Donets, Pavel A.,Oliveira, Caio C.,Cramer, Nicolai
supporting information, p. 4039 - 4042 (2018/03/13)
Secondary 1,3,2-diazaphospholenes have a polarized P?H bond and are emerging as molecular hydrides. Herein, a class of chiral, conformationally restricted methoxy-1,3,2-diazaphospholene catalysts is reported. We demonstrate their catalytic potential in asymmetric 1,4-reductions of α,β-unsaturated carbonyl derivatives, including enones, acyl pyrroles, and amides, which proceeded in enantioselectivities of up to 95.5:4.5 e.r.
