Reaction with germanium dichloride

Reaction of silylene 85 with silyl halides is believed to proceed via a similar reaction mechanism. The reactions are however less clean giving other products as well, such as silyldihalides 85X2. Similarly, during the reaction with germanium or tin(iv) chlorides, the dichloride 85C12 and the element(ll) chloride are formed <2006JOM811>. 

In the reaction of lithiated 2-hydroxybiphenyl and 2 -hydroxy-m-terphenyl with germanium dichloride-dioxane complex and GeCLj, respectively, spirocyclic ger-mabiphenanthrene compounds (Scheme 4) and l-oxa-10-germaphenanthrene (Scheme 5) were formed11. 

Treatment of trichlorogermylphosphine 183 with a twofold excess of DBU in tetrahydrofuran gave bis[bis(trimethylsilyl)methyl]diphosphene (186), bis(trimethylsilyl)methylphosphine (187), and diphosphine 188 in the proportions 55 25 20. The proposed reaction mechanism is depicted in Scheme 4. Compound 184 was probably first formed through the elimination of germanium dichloride, and then reacted further with an excess of DBU in two competitive reaction routes to give compounds 186-188. Intermolecular dehydrochlorination of 184 afforded diphosphene 186, while intramolecular dehydrochlorination of 184 resulted in 187 and 188 via the triplet phos-phinidene intermediate 185 (84CC1621). 

The reaction of trichlorogermylphosphines (226) with DBU gave chloro-phosphine 227 and a DBU -germanium dichloride complex (228) (84CC1621). 

CARBONIC ACID, LITHIUM SALT (554-13-2) LijCOj Aqueous solution is an organic base. Violent reaction with acids. Inconpatible with fluorine, germanium, lead diacetate, magnesium, mercurous chloride, silicon, silver nitrate, titanium. Aqueous solution incompatible with organic anhydrides, acrylates, alcohols, aldehydes, alkylene oxides, substituted allyls, cellulose nitrate, cresols, caprolactam solution, epichlorohydrin, ethylene dichloride, isocyanates, ketones, glycols, nitrates, phenols, vinyl acetate. Exothermic decomposition with maleic anhydride. Corrodes aluminum, copper, zinc in the presence of moisture. On small fires, use any extinguishing agent. 

Violent reaction with acids, trans-acetylene dichloride, alcohols, organic anhydrides, aldehydes, alkylene oxides, aminotetrazole, /j-bis(l,3-dibromoethy )benzene, bromoform, captrolactam solution, chlorine dioxide (explodes), chloroform, cresols, cyclopentadiene, cis-dichloroethylene, epichlorohydrin, ethylene dichloride, germanium, glycols, halogenated hydrocarbons, iodine pentafluoride, isocyanates, maleic anhydride, nitrogen trichloride,... 

Germanium Dichloride. Cl2Ge mol wt 143.51. Ge 50.59%, Cl 49.41%, GeCl2. Obtained as residue upon low temp distillation of GeHClj (prepd by the reaction of hydrogen chloride with germanium monosulfide) Moulton, Miller, J. Am. Chem. Soc. 78, 2702 (1956). 

It can also be shown that the reactions of stannic chloride [92] and germanium tetrachloride [93] with potassium give chemiluminescence due to stannous chloride with SnCl and germanium dichloride respectively. The detailed spectroscopic analyses allow a reassessment [94] of the primary chemiluminescence mechanism of Heller and Polanyi... 

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