Synthesis of 1-methyl-4-alkyl-1,3-diacetylenes. Prototropic rearrangement in 1-alkyl-1,3-diacetylenes
作者:Miguel J Dabdoub、Vânia B Dabdoub、Eder J Lenardão
DOI:10.1016/s0040-4039(01)00046-6
日期:2001.3
lkyl-3,5-diacetylenes with powdered NaOH was used for the synthesis of terminal 1-alkyl-1,3-butadiynes that can be isolated (54–97%) or used in situ. In an attempt to increase the yields of some of the obtained products, different experimental conditions were studied and we found that by using CTAB as a catalyst, a prototropicrearrangement was promoted to afford the 1-methyl-4-alkyl-1,3-diacetylenes