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1.3- Diphosphacyclobutane-2,4-diyl

Irradiation causes ring closure by valence isomerization of 1,3-diphosphacyclobutane-2,4-diyl 42 (R = 2,4,6-tri(tert-butyl)phenyl) to 2,4-diphosphabicyclo[1.1.0]butane 43 which on thermolysis yielded the gauche-1,4-diphosphabutadiene 44 <99AG(E)3028>. The same group of workers have isolated the carbene 45 (R as above) as the lithium salt of a trimethylalane complex 46 <99AG(E)3031>. [Pg.75]

Figure 5.7 Resonance structures and HOMO for l,3-diphosphacyclobutane-2,4-diyls. Figure 5.7 Resonance structures and HOMO for l,3-diphosphacyclobutane-2,4-diyls.
The 1-oxo-l/f-diphospholes 26 and 27 were obtained from a diphosphacyclobutane-2,4-diyl and their structures established by crystallographic measurements <2004CEJ2700>. [Pg.1172]

See other pages where 1.3- Diphosphacyclobutane-2,4-diyl is mentioned: [Pg.1185]    [Pg.30]    [Pg.61]    [Pg.61]    [Pg.61]    [Pg.93]    [Pg.1183]    [Pg.1185]    [Pg.64]    [Pg.119]    [Pg.85]    [Pg.85]    [Pg.30]    [Pg.50]    [Pg.103]    [Pg.103]    [Pg.28]   
See also in sourсe #XX -- [ Pg.93 ]

See also in sourсe #XX -- [ Pg.85 ]



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1.4- diyl

Diyls

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