@article { author = {Amini Manesh, Abbas and Khazaei, Ardeshir and Gohari, Maedeh and Chegeni, Mahdieh and Saednia, Shahnaz}, title = {1,3-Dichloro-5,5-dimethyl hydantoin and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide as efficient catalysts for the methoxymethylation of alcohols under solvent-free conditions}, journal = {Iranian chemical communication}, volume = {5}, number = {Issue 3, pp. 237-363, Serial No. 16}, pages = {308-314}, year = {2017}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {Methoxymethylation of a variety of alcohols was performed using formaldehyde dimethyl acetal in the presence of 1,3-dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] as catalysts at room temperature and under solvent-free conditions. Our experiments show that primary and secondary alcohols can be smoothly converted into the corresponding MOM-ethers in excellent yields. The methoxymethyl ethers (MOM-ethers) were obtained with good to excellent yields. 1,3-Dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] effectively catalyzed the methoxymethylation of alcohols with dimethoxymethane at ambient temperature. The notable advantages of this method are mild reaction conditions, high yields, cheapness, safety and eco-friendliness, and recyclability of the catalysts.}, keywords = {Methoxymethylation,alcohols,DCDMH,PBNS,solvent-free conditions}, url = {https://icc.journals.pnu.ac.ir/article_3024.html}, eprint = {https://icc.journals.pnu.ac.ir/article_3024_d86e1acd9727bc7dcd9ab5e6bff99b1c.pdf} }