E1cb mechanism is the overwhelming process in the reaction of bases and ozonides. As a quenching agent in the ozonolysis of a variety of alkenes, the reactions involving triethylamine often gave better yields and proceeded faster than those involving methyl sulfide. On the other hand, in the presence of 4 Å molecular sieves, the secondary amines reacted with mono- and 1,1-di-substituted ozonides to afford
An extremely efficient way to prepare conjugated carbonyl compounds from terminal alkenes via the reactions of ozonides, triethylamine and stable phosphorus ylides
作者:Yung-Son Hon、Ling Lu
DOI:10.1016/0040-4020(95)00431-7
日期:1995.7
Ozonides derived from mono- and 1,1-di-substitmed olefins reacted with triethylamine in the presence of nucleophiles, such as phosphorusylide or phosphonoacetate to give conjugated carbonyl compounds almost instantaneously in excellent yields. These transformations were accelerated by the by-product (i.e. thermal energy and ammonium formate) generated in the reaction.
The reactions of the ozonides with secondary amines: An efficient and novel way to prepare tertiary amine from mono- and 1,1-di-substituted alkenes via corresponding ozonides
作者:Hon Yung-Son、Lu Ling
DOI:10.1016/s0040-4039(00)73982-7
日期:1993.8
The ozonolytic cleavage of cycloalkenes in the presence of methyl pyruvate to yield the terminally differentiated compounds