Acetylenedicarbaldehyde: isolement et dienophilie exclusive en milieu neutre
作者:A. Gorgues、D. Stephan、A. Belyasmine A. Khanous、A. Le. Co
DOI:10.1016/s0040-4020(01)88374-5
日期:1990.1
SIMON, ANDRE;CORRE, FRANCOIS;GORGUES, ALAIN
作者:SIMON, ANDRE、CORRE, FRANCOIS、GORGUES, ALAIN
DOI:——
日期:——
GORGUES, A.;STEPHAN, D.;BELYASMINE, A.;KHANOUS, A.;LE, COO A., TETRAHEDRON, 46,(1990) N, C. 2817-2826
作者:GORGUES, A.、STEPHAN, D.、BELYASMINE, A.、KHANOUS, A.、LE, COO A.
DOI:——
日期:——
STEPHAN, DOMINIQUE;GORGUES, ALAIN;BELYASMINE, AHMED;LE, COQ ANDRE, J. CHEM. SOC. CHEM. COMMUN.,(1988) N 4, 263-264
作者:STEPHAN, DOMINIQUE、GORGUES, ALAIN、BELYASMINE, AHMED、LE, COQ ANDRE
DOI:——
日期:——
Acetylenedicarbaldehyde: isolation and some examples of exclusive dienophilicity under neutral conditions
作者:Dominique Stéphan、Alain Gorgues、Ahmed Belyasmine、André Le Coq
DOI:10.1039/c39880000263
日期:——
Acetylenedicarbaldehyde (1) is isolated in the pure state after acidolysis of its monoacetal (2) with an excess of formic acid followed by dehydration of residual HCO2H into CO with P2O5; underneutralconditions, (1) reacts with conjugated dienes as a dienophile only, in contrast to what occurs in acidic medium.
在用过量的甲酸酸解其单缩醛(2),然后用P 2 O 5将残留的HCO 2 H脱水成CO时,分离出纯的乙炔二甲醛(1); 在中性条件下,(1)与共轭二烯仅作为亲二烯体反应,这与酸性介质中的反应相反。