Reactions of trialkyl(2-furyl) germanes with electrophilic reagents

Furan derivatives of group IV elements (review)

“…Resinification is also observed in the presence of the neutral nitrating agent nitronium tetrafluoroborate, but the corresponding 5-nitro-substituted derivative was obtained with a small yield (10%) from triethyl(2-furyl)germane [315].…”

“…During the alkylation of 2-trimethylsilyl-and 2-trimethylgermylfurans by terr-butanol in the presence of Amberlist 15 ion-exchange resin, the silyl and germyl groups and not the hydrogen of the ring underwent electrophilic substitution [315], and the silyl group was substituted more easily than the germyl group.…”

“…Whereas the bromination of triethyl(3-bronlo-2-furyl)germane with dioxane dibromide takes place exclusively as lpso substitution, triethyl(3-bromo-2-furyl)germane was obtained with a 43% yield by the action of N-bromosucciniinide in the presence of benzoyl peroxide under radical conditions [315]. The chlorination of furylgermane was realized with Chloramine T in the two-phase chloroform-water system with sodium picrate as catalyst.…”

“…The only product triethyl(5-trifluoroacetyl-2-furyl)germane (64%) was obtained as a result of electrophilic substitution [315].…”

“…The electrophilic substitution of the trimethylsilyl [315][316][317][318] and trimethylgermyl [315] groups in 2-trimethylsilylfuran, 2-trimethylsilylbenzofuran, and 2-trimethylgermylfuran was studied.…”