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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Chemical Reviews
- نوع مقاله: Journal Article
- کلمات کلیدی: Boron sulfonic acid (BSA),Organic synthesis,Tris(hydrogensulfato)boron,Silica Boron Sulfonic Acid (SBSA),Heterocyclic compounds
- چکیده:
- چکیده انگلیسی: Boron sulfonic acid (BSA) plays an important role in the improvement of many organic reaction conditions as a solid acid catalyst, which dramatically has attracted the attention of many chemists. This review covers all highlight research of literatures in the last decade from 2008 to 2018.
- انتشار مقاله: 14-09-1397
- نویسندگان: Sami Sajjadifar,Hoda Hamidi,Kaushik Pal
- مشاهده
- جایگاه : پژوهشی
- مجله: Chemical Methodologies
- نوع مقاله: Journal Article
- کلمات کلیدی: Quinoxaline,Boron Sulfonic Acid,Trimethyl borate,Triisopropyl borate,SBSA,STMB,STIPB
- چکیده:
- چکیده انگلیسی: A simple, highly efficient and green procedure for the condensation of aryl and alkyl 1,2-diamines with α-diketones in the presence of catalytic amount of boron sulfonic acid (BSA) and silica trimethyl borat (STMB) and silica triisopropyl borate (STIPB), as two novel heterogeneous Lewis acid catalysts at room temperature, is described. In this method, we proved that the BrØnsted acidic power of boron sulfonic acid (BSA) is more important than its Lewis acidity. Using this method, quinoxaline derivatives as biologically interesting compounds are produced in high to excellent yields.
- انتشار مقاله: 17-06-1397
- نویسندگان: Sami Sajjadifar,Vahid Azizkhania,Kaushik Pal,Hadi Jabbari,Omidali Pouralimardan,Faten Divsar,Sarvin Mohammadi-Aghdam,Issa Amini,Hoda Hamidi
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Journal of Green Chemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: Ag supported,β-azido alcohols,Ring Opening,Regioselective,Lewis acid
- چکیده:
- چکیده انگلیسی: In this study, we synthesized Ag supported on hydroxyapatite-core-shell-γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ag NPs) as a new, lewis acid, and reusable heterogeneous nancatalyst. Then, it was successfully used for the synthesis of β-azido alcohols and β-thiocyanohydrins from the regioselective conversation of some epoxides by azide and thiocyanate anions in water. The reaction afforded the corresponding products with high regioselectivity under mild reaction conditions.
- انتشار مقاله: 18-09-1397
- نویسندگان: Issa Amini,Vahid Azizkhani,Elham Ezzatzadeh,Kaushik Pal,Sobhan Rezayati,Mohammad Hossein Fekri,Parisa Shirkhani
- مشاهده