Cui, Yuming; Fu, Lingzi; Cao, Jian; Deng, Yuan; Jiang, Jianxiong published the article 《Synthesis of Dibenzophosphole Oxides via Palladium-Catalyzed Intramolecular Direct Arylation Reactions of ortho-Halodiarylphosphine Oxides》. Keywords: palladium catalyzed intramol arylation cyclization ortho halodiarylphosphine oxide; dibenzophosphole oxide preparation crystal structure; crystal structure dibenzophosphole oxide; mol structure dibenzophosphole oxide.They researched the compound: Tricyclohexylphosphonium tetrafluoroborate( cas:58656-04-5 ).Name: Tricyclohexylphosphonium tetrafluoroborate. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:58656-04-5) here.
A Pd-catalyzed intramol. direct arylation reaction was developed and two efficient 1-pot sequential direct arylation/Suzuki-Miyaura coupling and intra/intermol. direct arylation reactions were also realized. The method provides a simple and straightforward procedure for the synthesis and further functionalization of dibenzophosphole oxides from easily accessible ortho-halodiarylphosphine oxides in good to excellent yields.
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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem