Aryl Boronic Acid Catalysed Dehydrative Substitution of Benzylic Alcohols for C−O Bond Formation
作者:Susana Estopiñá‐Durán、Liam J. Donnelly、Euan B. Mclean、Bryony M. Hockin、Alexandra M. Z. Slawin、James E. Taylor
DOI:10.1002/chem.201806057
日期:2019.3.12
substitution of benzylicalcohols with a second alcohol to form new C−Obonds. This method has been applied to the intermolecular substitution of benzylicalcohols to form symmetrical ethers, intramolecular cyclisations of diols to form aryl‐substituted tetrahydrofuran and tetrahydropyran derivatives, and intermolecular crossed‐etherification reactions between two different alcohols. Mechanistic control
Silica Sulfuric Acid as an Efficient Reagent for the Synthesis of Symmetrical Ethers Under Mild and Heterogeneous Conditions
作者:Farhad Shirini、Mohammad Ali Zolfigol、Kamal Mohammadi
DOI:10.1080/714040949
日期:2003.11.1
A mild and efficient method for the synthesis of symmetrical ethers using silica sulfuric acid is reported. All reactions are performed under compeletly heterogeneous conditions in good to high yields.
A Mild Synthesis of Unsymmetrical Bisalkoxysilanes through Catalyzed Alcoholysis of Hydridosilanes Containing C−C Multiple Bonds and Aryl Halides
作者:Colleen N. Scott、Craig S. Wilcox
DOI:10.1021/jo9022765
日期:2010.1.1
The synthesis of unsymmetrical bisalkoxysilanes containing unsaturated C−C bonds and alkyl and aryl bromides has been developed. This method is a modification of our previously reported two-step procedure that utilizes readily available catalysts (rhodium acetate dimer and manganese pentacarbonyl bromide) under mild neutral aprotic conditions. Good to moderate yields of the products were obtained in
[EN] DEAMINATION OF ORGANOPHOSPHORUS-NUCLEOSIDES<br/>[FR] DÉSAMINATION DE NUCLÉOSIDES ORGANOPHOSPHORÉS
申请人:INST UNIV DE CIÈNCIA I TECNOLOGIA S A
公开号:WO2016146808A1
公开(公告)日:2016-09-22
The invention relates to a new synthethic process for obtaining compounds of formula (I) from compounds of formula (II) by means of cytidine deaminase enzymes.
这项发明涉及一种新的合成过程,通过胞嘧啶脱氨酶酶将式(I)化合物从式(II)化合物中获得。
Antimony(<scp>v</scp>) cations for the selective catalytic transformation of aldehydes into symmetric ethers, α,β-unsaturated aldehydes, and 1,3,5-trioxanes
作者:Renzo Arias Ugarte、Deepa Devarajan、Ryan M. Mushinski、Todd W. Hudnall
DOI:10.1039/c6dt02121b
日期:——
acidity of [2][OTf] was exploited in the catalytic reductivecoupling of a variety of aldehydes into symmetric ethers of type L in good to excellent yields under mild conditions using Et3SiH as the reductant. Additionally, [2][OTf] was found to selectively catalyze the Aldol condensation reaction to afford α-β unsaturated aldehydes (M) when aldehydes with 2 α-hydrogen atoms were used. Finally, [2][OTf]