@article{f84515461eef41a5a891c24983d1c03e,
title = "Synthesis and characterization of tetrathiatetraasterane",
abstract = "Irradiation of 1,4-dithiin gives the cis, syn, cis-photodimer in 70-80% yield whose structure has been unequivocally established by X-ray crystallographic methods. A minor product is formed in this photodimerization which is shown to the trans, anti, trans-photodimer by X-ray structural analysis. Irradiation of the syn photodimer produces tetrathiatetraasterane in 70% yield. The structure of this product is also proven by X-ray methods.",
author = "Bojkova, {Nina V.} and Glass, {Richard S.}",
note = "Funding Information: Figure 3. ORTEP Drawing of 5. Tetrathiatetraasterane is a member of the class of compounds whose molecular shape resembles a four-pointed star. Tetraasteranes consisting of all carbon cages have also been synthesized and characterized. 46 In conclusion, the photodimer obtained by irradiation of 1,4-dithiin, first reported by Gollnick and Hartmann, is unequivocally established to have cis, syn, cis stereochemistry. Furthermore, irradiation of this dimer results in intramolecular \[2+2\]p hotocyclization to tetrathiatetraasterane 4b. Acknowledgment. The authors gratefully acknowledge support of this work by the National Science Foundation (CHE-9422200), The X-ray crystallographic structures were determined at the Molecular Structure Laboratory of the University of Arizona.",
year = "1998",
month = dec,
day = "10",
doi = "10.1016/S0040-4039(98)02062-0",
language = "English (US)",
volume = "39",
pages = "9125--9126",
journal = "Tetrahedron Letters",
issn = "0040-4039",
publisher = "Elsevier Limited",
number = "50",
}