TY - JOUR ID - 3510 TI - An efficient synthesis of monoarylidene derivatives of pyran-4-one and piperidin-4-one JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Mojtahedi, Mohammad M. AU - Abaee, M. Saeed AU - Samianifard, Maedeh AU - Shamloo, Akram AD - Chemistry and Chemical Engineering Research Center of Iran P.O.Box 14335-186, ‎Tehran, Iran Y1 - 2014 PY - 2014 VL - 21 IS - 3 SP - 719 EP - 726 KW - a,b-Unsaturated ketones KW - Organocatalysis KW - Heterocyclic chemistry KW - Aldol condensation DO - N2 - A room-temperature procedure is developed for the direct synthesis of monoarylidene derivatives of pyran-4-one and piperidin-4-one systems under solvent-free conditions. Relatively high yields of products are obtained from the reaction of ketones 1 with different aromatic and aliphatic aldehydes under the catalytic system of TMSNMe2 and MgBr2·OEt2. Notably, formation of the undesired bis counterparts as a major limitation of these reaction types, is minimized using the employed conditions. UR - https://scientiairanica.sharif.edu/article_3510.html L1 - https://scientiairanica.sharif.edu/article_3510_671d96ddd606f84951b911fe0778af7b.pdf ER -