110577-23-6

Upstream product

• 110577-26-9 (CH₃CH₂)3GeGe(C₆H₅)2Cl 
• 3383-21-9 3,5-di-tert-butyl-o-benzoquinone 
• 1020-31-1 3,5-Di-tert-butylcatechol 
• 1613-66-7 dichlorodiphenylgermane 
• 3839-32-5 triphenylgermyl lithium 
• 37044-16-9 tetraphenyldigermanium dichloride 
• 7366-23-6 diphenylchlorogermane 
• 122422-42-8 (C₆H₅)2ClGeNHC₆H₂(CH₃)3 
• 122422-41-7 dimesityl-1,3-tetraphenylcyclodigermazane 
• 42967-42-0 Ph₂ClGeGePh₃ 

Relevant academic research and scientific papers

Complexes du fer hydro-digermanies: 5-C5H5)(CO)2> (R = Et, Ph) - etude photolytique

The new complexes 5-C5H5)(CO)2> (R=Et or Ph) were prepared by a substitution reaction from the corresponding arylhalohydrodigermanes and the iron salt.Their characterization by IR, 1H and 13C NMR and mass spectroscopy is reported.Photolysis of each complex affords transient monohydrogermylcomplexes 5-C5H5)(CO)2> and dialkylgermylenes which are trapped by 3,5-di-tert-butylorthoquinone and dimethyldisulphide with correct yields.These photolytic reactions are not affected by radical initiators like peroxide.

Etude de la reaction de germyllithiums sur la di-t-butyl-3,5 orthoquinone: mise en evidence d'un mecanisme par transfert monoelectronique

Reactions between organogermyllithiums R3GeLi and 3,5-di-t-butylorthoquinone mainly give digermanes but also O-germylcatechol and germadioxolanes.It appears that these reactions start after an initial single electron transfer (SET) which is supported by a

Addition 1,4 de divers organo- et organohalogeno-hydrogermanes sur la di-t-butyl-3,5 orthoquinone

The thermal 1,4-addition of triorganohydrogermanes R3GeH(R=Et, Ph) with 3,5-di-t-butylorthoquinone leads to their corresponding mono-O-germylated catechols in good yields.Similarly, the organohalohydrogermanes give the 2,2-di-organo- (or 2,2-organohalo)(6,8-di-t-butyl)-4,5-benzo-2-germa-1,3-dioxolanes after dehydrochlorination of transient mono-O-chlorogermylated catechols.Since these reactions are only slightly dependent on solvent and radical initiators, the mechanism probably involves monoelectronic transfer with the formation of a radical anion pair in the first step.The ESR measurements show the transient formation of a paramagnetico-semiquinonic species which supports the proposed mechanism.

Reaction de derives a liaison germanium-azote (germylamines, cyclogermazanes et germa-imines transitoires) avec la di-t-butyl-3,5-orthoquinone

Several germanium-nitrogen compounds were treated with 3,5-di-t-butylorthoquinone (1).In the case of germylamines R3GeNMe2 (R = Et, Ph), 1,2 and 1,4 adducts were formed, as shown by 1H NMR spectroscopy.The thermally unstable 1,4 adduct, decomposes with nitrene elimination to give 2,2-dialkyl or 2,2-diaryl (6,8-di-t-butyl)-4,5-benzo-2-germa-1,3-dioxolane.The 1,2 adduct, through intermolecular redistribution, leads to digermyloxide (R3Ge)2O and a gem-diamine with partial regeneration of the starting quinone 1.These addition reactions proceed through a monoelectric transfer mechanism, with formation of a transient o-semiquinonic radical identified by ESR spectroscopy.This transient radical leads to O-germyl 3,5-di-t-butylcatechol by hydrogen abstraction from the solvent.The proposed mechanism explains the formation of the germylated compounds as well as the organic by-products.Similar reactions were observed between cyclodigermazanes and 1.The 1,4 cycloaddition generates germadioxolanes with nitrene expulsion, whereas the 1,2-cycloaddition leads to the germoxane and conjugated ketoimine, or diimine.The latter is a good trapping agent for the nitrene formed in the decomposition of the 1,4 adduct.Both the 1,4 and 1,2 cycloadduct decompositions imply transient germaimine formation.The same germaimine, formed at room temperature from intramolecular dehydrogenation of the hindered R2ClGeNHR' by 1,8-diazabicyclo-7-undecene) gives the same reaction products.

Cycloaddition of Germylenes to 3,5-Di-t-butylorthoquinone

The germylenes X2Ge, RGeX and R2Ge (X= halogen, OR; R= alkyl or aryl) react at room temperature with 3,5-di-t-butyl orthoquinone by regioselective cycloaddition.The corresponding substituted 2-germa-1,3-dioxolans are formed similarly in good yields, but t