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Diastereoselective Synthesis and Conformation of trans-2;3-Dibenzoyl-1;4-dithiacyclohepta

Issa Yavari
Rahebeh Amiri
Mina Haghdadi

Sažetak

The reaction of dibenzoylacetylene and propane-1,3-dithiol in the presence of triphenylphosphine
leads to diastereoselective synthesis of the mesocyclic dithioether trans-2,3-dibenzoyl-
1,4-dithiacycloheptane in 70 % yield. The results of ab initio calculations at HF/6-31G* level
show that the trans isomer is 31.3 kJ mol–1 more stable than the cis geometry.

Ključne riječi

dibenzoylacetylene; diastereoselective synthesis; 1,4-dithiacycloheptane; mesocyclic polythioether; ab initio calculations

Hrčak ID:

12811

URI

https://hrcak.srce.hr/12811

Datum izdavanja:

11.3.2007.

Posjeta: 1.597 *