Novel dianionic sulfur ylides and related compounds

Priority task of the thesis was to replace oxygen atoms in sulfur oxoanions SOnm– or imido groups in sulfur polyimido anions S(NR)nm– isoelectronically by R2C-methylene groups. This would open a wide avenue to new target molecules containing a formally double bonded carbon next to formally double bonded nitrogen atoms in highly charged sulfur-centred anions like S(CR2)x(NR)ym–. They clearly are reminiscent to sulfur ylides. Both, alkylendiimidosulfites and alkylentriimidosulfates are accessible via deprotonaton of the corresponding alkyldiimidosulfinates and alkyltriimidosulfonates with methyllithium. The reactivity of the novel compounds is dominated by the carbanionic centre. Addition reactions to another SN formal doubble bond are feasible and are leading to the yet unknown imidoanalogues compounds alkyl-bis-(diimidosulfinates) and alkyl-bis-(triimidosulfonates).

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Würzburg

Year

2002

Author dc:creator

• Walfort, Bernhard

Contributors dc:contributor

• Stalke, Dietmer

• Schwefelylide
• Polyimidoanionen
• Sulfit
• Sulfat
• Sulfur Ylides
• Polyimido Anions
• Sulfite
• Sulfate

Repository record source_url

https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/226

OAI identifier oai:identifier

oai:opus.bibliothek.uni-wuerzburg.de:226