Big Chemical Encyclopedia

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

Articles Figures Tables About

7,8,15,16-tetraoxadispiro

The Baeyer-Villiger oxidation of cyclohexanone to e-caprolactone using H202 in (CF3)2CHOH proceeds via 7,8,15,16-tetraoxadispiro[5.2.5.2]hexadecane 32. The tetraoxane can be isolated and rearranges to the lactone on treatment with catalytic amounts of 4-TsOH <02 AG(E)4481>. [Pg.378]

The first several perfluoro spiro compounds have also been synthesized (62). An example of this technology is the synthesis and crystal stmcture of perfluoro-1,4,9,12-tetraoxadispiro [4.2.4.2]tetradecane. [Pg.278]

The procedure described is essentially that of Belleau and Weinberg and represents the only known way of obtaining the title compound. One other quinone acetal, 1,4,9,12-tetraoxadispiro[4.2.4.2]tetradeca-6,13-diene, has been synthesized by a conventional method (reaction of 1,4-cyclohexanedione with ethylene glycol follow ed by bromination and dehydrobromination ) as well as by an electrochemical method (anodic oxidation of 2,2-(l,4-phenylenedioxy)diethanol ). Quinone acetals have been used as intermediates in the synthesis of 4,4-dimethoxy-2,5-cyclohexadienone, syw-bishomoquinone, and compounds related to natural products. ... [Pg.48]

See 1 l,12-Diethynyl-l,4,7,10-tetraoxadispiro[4.0.4.2]dodec-l 1-ene See other ACETYLENIC COMPOUNDS... [Pg.1025]

See other pages where 7,8,15,16-tetraoxadispiro is mentioned: [Pg.978]    [Pg.112]    [Pg.1171]    [Pg.1220]    [Pg.2089]    [Pg.1171]    [Pg.1171]    [Pg.2003]    [Pg.978]    [Pg.112]    [Pg.962]    [Pg.1021]    [Pg.1154]    [Pg.1171]    [Pg.11]    [Pg.1234]    [Pg.1205]    [Pg.1220]    [Pg.2079]    [Pg.2089]    [Pg.962]    [Pg.1021]    [Pg.1154]    [Pg.1171]    [Pg.12]    [Pg.962]    [Pg.1021]    [Pg.1154]    [Pg.1171]    [Pg.1993]    [Pg.2003]    [Pg.31]    [Pg.12]    [Pg.373]    [Pg.503]    [Pg.523]    [Pg.908]    [Pg.1110]    [Pg.184]    [Pg.184]    [Pg.271]    [Pg.272]    [Pg.160]    [Pg.310]    [Pg.458]    [Pg.500]   
See also in sourсe #XX -- [ Pg.2 , Pg.2 , Pg.5 , Pg.5 ]



SEARCH



7,8,15,16-Tetraoxadispiro hexadecane

© 2024 chempedia.info