Big Chemical Encyclopedia

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

Articles Figures Tables About

Catecholboryl complexes

Boryl complexes featuring the [Mn(CO)s] moiety were first reported as early as 1995, the manganese catecholboryl system (OC MnBcat (7.1, Fig. 11) having been synthesized by the reaction of ClBcat with Na[Mn(CO)s], and investigated in the functionalization of arenes and alkenes [55-57]. The Mn-B distance of 2.108(6) A measured for 7.1 is not particularly short, when compared to the sum of the respective covalent radii (2.01 A [11]). Moreover, the Mn-C distance for the carbonyl ligand trans to Beat [1.841(6) A] falls within the... [Pg.46]

Scheme 12 Osmium boryl complexes generated from catecholboryl system 8.104... Scheme 12 Osmium boryl complexes generated from catecholboryl system 8.104...
Singleton and Redman [22] have found that tra s-l,2-bis(catecholboryl)-ethylene is an air-stable crystalline solid, whereas tra s-l,2-bis(9-BBN)ethylene (Chart 30.2) is less stable and is maintained in solution only as its acetonitrile complex, both reagents function as trans-dihydroxyethylene equivalents for Diels-Alder reactions. Cyclohexenediols obtained from reactions of catecholbo-ryl derivatives are summarized in Table 30.5 [22]. [Pg.508]

See other pages where Catecholboryl complexes is mentioned: [Pg.176]    [Pg.38]    [Pg.38]    [Pg.42]    [Pg.43]    [Pg.48]    [Pg.51]    [Pg.52]    [Pg.57]    [Pg.59]    [Pg.71]    [Pg.77]    [Pg.80]    [Pg.176]    [Pg.38]    [Pg.38]    [Pg.42]    [Pg.43]    [Pg.48]    [Pg.51]    [Pg.52]    [Pg.57]    [Pg.59]    [Pg.71]    [Pg.77]    [Pg.80]    [Pg.175]    [Pg.392]    [Pg.38]    [Pg.42]    [Pg.46]    [Pg.47]    [Pg.52]    [Pg.70]    [Pg.74]   
See also in sourсe #XX -- [ Pg.38 , Pg.42 , Pg.46 , Pg.52 , Pg.70 , Pg.74 ]



SEARCH



Catecholboryl and Related Complexes

© 2024 chempedia.info