Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron Letters called Diphosphorus tetraiodide (P2I4). A valuable reagent for regioselective synthesis of iodo alkanes from alcohols, Author is Lauwers, M.; Regnier, B.; Van Eenoo, M.; Denis, J. N.; Krief, A., which mentions a compound: 616-14-8, SMILESS is CCC(CI)C, Molecular C5H11I, Product Details of 616-14-8.
Primary, secondary, and tertiary alkanols and phenylalkanols and secondary and tertiary cycloalkanols were converted in high yields to the resp. alkyl, phenylalkyl, and cycloalkyl iodides by P2I4 in CS2 and at 20°. E.g., ROH [R = Me(CH2)7, Ph(CH2)2, cyclopentyl] gave 80-8% RI in 24 h.
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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem