Aryl-substituted triarsiranes: synthesis and reactivity

Area of Science:

• Organometallic Chemistry
• Main Group Chemistry

Background:

• Cyclotriarsanes, compounds featuring a three-membered ring of arsenic atoms, are uncommon in chemical literature.
• Exploring the synthesis and reactivity of novel arsenic clusters is crucial for advancing inorganic chemistry.

Purpose of the Study:

• To establish a scalable synthetic route for cyclotriarsanes.
• To investigate the reactivity of cyclotriarsanes with titanocene complexes and N-heterocyclic carbenes (NHCs).

Main Methods:

• Development of a scalable synthetic protocol for cyclotriarsane ((AsAr)3) synthesis.
• Reaction of the synthesized cyclotriarsane with [Cp2Ti(C2(SiMe3)2)] to form titanocene complexes.
• Reaction of the synthesized cyclotriarsane with N-heterocyclic carbenes (NHCs).

Main Results:

• A scalable synthetic method for cyclotriarsanes was successfully established.
• The reactivity studies yielded novel titanocene diarsene complexes.
• A variety of N-heterocyclic carbene-arsinidene adducts were synthesized through straightforward reactions.

Conclusions:

• The developed synthetic protocol provides accessible cyclotriarsanes for further chemical exploration.
• Cyclotriarsanes exhibit versatile reactivity, leading to the formation of unique organometallic and coordination compounds.