ISSN:
0009-2940
Keywords:
Disilenes
;
Organosilicon compounds
;
1,2,3-Oxadisiliranes
;
Dioxadisiletanes
;
Cycloaddition reactions
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Reaction of the unsymmetrically substituted disilene R2Si=SiR′2 (4; R = 2,4,6-Me3C6H2, R′ = 2,4,6-iPr3C6H2) with m-chloroperbenzoic acid (mCPBA) or oxygen furnished the correspondingly substituted 1,2,3-oxadisilirane 5 or 1,3,2,4-dioxadisiletane 6, respectively. The [2 + 2] and [2 + 4] Cycloaddition reactions of 4 with benzophenone and 3,5-di-tert-butyl-1,2-benzoquinone, respectively, proceeded with a high degree of regioselectivity to yield the 1,2,3-oxadisiletane 9 and the 2,3-dihydro-1,4,2,3-benzodioxadisiline 7. The latter product was isolated together with a small amount of an isomeric compound 8 in which the substituents at the silicon atoms are reversed. The molecular structures of the products 5, 6, and 7 were determined by X-ray crystallography.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951280914
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