@article{Marandi_Nadernia_Hazeri_Maghsoodlou_2024, title={Vitamin B12 used as effective biocatalyst for the synthesis of pyrano[2,3-c]cromenes and pyrano[2,3-d]pyrimidines}, volume={12}, url={https://oiccpress.com/iranian-journal-of-catalysis/article/vitamin-b12-used-as-effective-biocatalyst-for-the-synthesis-of-pyrano23-ccromenes-and-pyrano23-dpyrimidines/}, DOI={10.30495/ijc.2022.689575}, abstractNote={Synthesis of organic compounds using some natural compounds as catalysts has gained more attention in recent decades. With respect to the importance of these procedures, the synthesis of 3,4-dihydropyrano[2,3-c]chromene and pyrano[2,3-d]pyrimidine derivatives using vitamin B12 by a one-pot reaction of malononitrile, benzaldehydes and 4-hydroxycumarine or 1,3-dimethylbarbituric acid is reported.}, number={1}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Marandi, Ghasem and Nadernia, Reyhaneh and Hazeri, Nourallah and Maghsoodlou, Malek Taher}, year={2024}, month={Jan.}, keywords={Vitamin B12, Aldehydes, Pyrano[2, 3-c]chromene, 3-d]pyrimidine, Biocatalyst. Green route} }