TY - JOUR T1 - THE WITTIG REACTION WITH 2,2-DIMETHYL-l,3-INDANDIONE AU - Uyar, Tahsin PY - 1899 DA - January DO - 10.1501/Commub_0000000486 JF - Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering JO - Commun. Fac. Sci. Univ. Ank. Ser. B PB - Ankara University WT - DergiPark SN - 1303-6017 SP - 48 EP - 52 VL - 34 IS - 01.02 LA - en AB - The reactions of 2,2-dimethyl-l,3-indandione (I) with several Wittig reagents have been studied. When I was reacted with one or two equimolar amounts of active phosphoranes, such as methylene and ethylidenetriphenylphosphorane, bismethylene- and bisethylidene deriva- tives of the indandione were obtained in fairly good yields. The reactions of I with resonance- stabilized phosphoranes such as ethoxycarbony!methylene-2—butylidene— and carboethoxy— 2-methyl-2-propylidenetriphenylphosphorane gave monoalkylideneindanones in moderate or in pocr yields at severe conditions. On the contrary, the reaction of I with carboethoxymethyle- netriphenylphosphorane in sealed tube gave the bisalkylidene derivative of the indandione at 160°C. KW - The reactions KW - When I was reacted KW - On the contrary CR - Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering UR - https://doi.org/10.1501/Commub_0000000486 L1 - https://dergipark.org.tr/en/download/article-file/1991133 ER -