PERICAS, M. A.;SERRATOSA, F.;VALENTI, E., SYNTHESIS, BRD, 1985, N 12, 1118-1120
作者:PERICAS, M. A.、SERRATOSA, F.、VALENTI, E.
DOI:——
日期:——
Expedient Synthesis of 1,3-Cyclobutanedione via Thermal Dimerization of<i>t</i>-Butoxyethyne
作者:Miquel A. Pericàs、Fèlix Serratosa、Eduard Valenti
DOI:10.1055/s-1985-31444
日期:——
A new, short, and efficient synthesis of 1,3-cyclobutandione consists of the therma conversion of t-butoxyethyne into 3-t-butoxycyclobutenone (the first example of cyclobutenone formation from an unsubstituted acetylenic monoether) followed by cleavage of the t-butyl group with trifluoroacetic acid. The 62% overall yield is much higher than that of the previously described procedure.