An eco-friendly "on-water" protocol for efficient catalyst-free synthesis of the Hantzsch dihydropyridines from aryl, heteroaryl, alkyl, and vinylogous aldehydes has been developed with minimum auxiliary substances, toxic reagents, organic solvents, and disposal problems.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3767360 | PMC |
| http://dx.doi.org/10.5402/2012/342738 | DOI Listing |
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