2.8- difluoro-10,10-diiodo

Methane Difluoro-diiodo- ElOa. 671 (Fduct) ElOb, 498/500 (Edukt)... 

It is abundantly clear from the preceding discussion that dihalocyclopropanes are versatile intermediates in organic synthesis. Although a wealth of chemistry has already been uncovered, prospects remain bright for interesting developments in the future. Areas such as the application of dihalocyclopropanes in heterocyclic synthesis via carbene insertion into C—H bonds adjacent to heteroatoms, reactions of dihalocyclopropanes with organometallics and the synthetic applications of metallated derivatives deserve further exploration. The chemistry of difluoro-, diiodo- and mixed dihalo-cyclopropanes can be expected to attract some attention. Finally, other heteroatom-substituted cyclopropanes derived ftom dihalocyclopropanes will also invoke further investigation. 

The best known of the hahdes are the trialkyldihalo- and triaryldihaloantimony compounds. The dichloro, dibromo, and diiodo compounds are generally prepared by direct halogenation of the corresponding tertiary stibiaes. The difluoro compounds are obtained by metathasis from the dichloro or dibromo compounds and silver fluoride. The diiodo compounds are the least stable and are difficult to obtain ia a pure state. The tri alkyl- and triaryldichloro- and dibromoantimony compounds are all crystalline soHds which are stable at room temperature that but decompose on heating ... 

Ethene 1,2-Difluoro-1,2-diiodo-F.IObj. 422 (RjSn/RjSi - 1/1) E10b2. 137 (Fduct)... 

Monochloro, monofluoro, aliphatic alcohols, ketones Dichlori, difluoro, monobromo derivatives Trichloro, anhydrides Monoiodo, dibromo, nitro derivatives Diiodo, tribromo, polychlorinated aromatics... 

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