Black yet green: A heterogenous carbon-based acid catalyst for the synthesis of biscyclic derivatives under eco-friendly conditions
作者:Pankaj Teli、Ayushi Sethiya、Shikha Agarwal
DOI:10.1007/s11164-021-04622-4
日期:2022.2
green protocol has been described for the synthesis of biscoumarin and bisdimedone derivatives via one-pot Knoevenagel–Michael reaction of aromatic aldehydes with 4-hydroxycoumarin and dimedone, respectively. This approach has defined a new way of synthesizing products (4a-i and 5a-i) in high yields using carbon sulfonic acid as a heterogeneous solid acid catalyst. All the reactions have been executed
COUMARIN-BASED COMPOUNDS FOR THE TREATMENT OF ALZHEIMER'S DISEASE AND CANCER
申请人:Zhu Lei
公开号:US20110306605A1
公开(公告)日:2011-12-15
Compounds including those of the Formula I
where X, R
1
, R
2
and subscript t are as defined herein, useful as γ-secretase inhibitors, are provided, as are compositions comprising the compounds, as well as methods for use of the compounds for treating or preventing neurodegenerative diseases, such as, for instance, Alzheimer's disease.
[EN] COUMARIN-BASED COMPOUNDS FOR THE TREATMENT OF ALZHEIMER'S DISEASE AND CANCER<br/>[FR] COMPOSÉS À BASE DE COUMARINE
申请人:SLOAN KETTERING INST CANCER
公开号:WO2010075280A3
公开(公告)日:2010-08-19
[EN] COUMARIN-BASED COMPOUNDS<br/>[FR] COMPOSÉS À BASE DE COUMARINE
申请人:SLOAN KETTERING INST CANCER
公开号:WO2010075280A2
公开(公告)日:2010-07-01
Compounds including those of the Formula I where X, R1, R2 and subscript t are as defined herein, useful as γ-secretase inhibitors, are provided, as are compositions comprising the compounds, as well as methods for use of the compounds for treating or preventing neurodegenerative diseases, such as, for instance, Alzheimer's disease.
A synergetic role of Aegle marmelos fruit ash in the synthesis of biscoumarins and 2-amino-4H-chromenes
作者:Rupesh C. Patil、Sachinkumar K. Shinde、Uttam P. Patil、Appasaheb T. Birajdar、Suresh S. Patil
DOI:10.1007/s11164-020-04367-6
日期:2021.4
Abstract A dry rind of Aegle marmelos (bael) fruit ash as a synergetic alternative material to an expensive, toxic and corrosive catalysts for the synthesis of biscoumarins and 2-amino-4H-chromenes at ambient temperature in water is reported. The spectroscopic evidence from EDX, FTIR, XRD and SEM analysis of bael fruit ash supports the presence of metal oxides, carbonates and hydroxides which are intensely