Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ketene silyl acetals, photolysis

In contrast to the carbene and carbenoid chemistry of simple diazoacetic esters, that of a-silyl-a-diazoacetic esters has not yet been developed systematically [1]. Irradiation of ethyl diazo(trimethylsilyl)acetate in an alcohol affords products derived from 0-H insertion of the carbene intermediate, Wolff rearrangement, and carbene- silene rearrangement [2]. In contrast, photolysis of ethyl diazo(pentamethyldisilanyl)acetate in an inert solvent yields exclusively a ketene derived from a carbene->silene->ketene rearrangement [3], Photochemically generated ethoxycarbonyltrimethyl-silylcarbene cyclopropanates alkenes and undergoes insertion into aliphatic C-H bonds [4]. Copper-catalyzed and photochemically induced cyclopropenation of an alkyne with methyl diazo(trimethylsilyl)acetate has also been reported [5]. [Pg.149]


See other pages where Ketene silyl acetals, photolysis is mentioned: [Pg.962]    [Pg.229]    [Pg.720]    [Pg.229]    [Pg.229]    [Pg.277]    [Pg.720]   
See also in sourсe #XX -- [ Pg.1293 ]

See also in sourсe #XX -- [ Pg.1293 ]




SEARCH



Acetals photolysis

Keten acetal

Ketene acetal

Ketene photolysis

Ketenes acetals

Ketenes silyl acetals

Silyl acetate

Silyl ketene acetals

Silyl ketenes

© 2024 chempedia.info