Crystal Structure of Two Dimethyl 1,3-Thiazolidinedicarboxylates Obtained in Thermal [2 + 3]Cycloaddition of an Azomethine Ylide with 2,2,4,4-Tetramethyl-3-Thioxocyclobutanone

Authors: Domaga lstrok a Ma lstrok gorzata¹; Ma lstrok ecka Magdalena²; Urbaniak Katarzyna³; Mlosto nacute Grzegorz³; Grabowski S lstrok awomir²

Source: Structural Chemistry, Volume 16, Number 1, February 2005 , pp. 55-59(5)

Publisher: Springer

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Abstract:

The crystal structures of dimethyl 2,2,4,4-tetramethyl-3-oxocyclobutane-1-spiro-5 prime

-3

-diphenyl-(1,3)-thiazolidine-2 prime

-dicarboxylate, C₂₆H₂₉NO₅S for V, and dimethyl 3,4-diphenyl-5-isopropylidene-(1,3)-thiazolidine-2,2-dicarboxylate, C₂₂H₂₃NO₄S for VI, have been solved. The 1,3-thiazolidine ring of compound V has got twisted conformation, while in compound VI this ring adopts envelope. In both structures short inter- and intramolecular contacts were found, which can be recognized as hydrogen bonds.

Keywords: Crystal and molecular structure; C–H sdot sdot sdot S hydrogen bonds; The Bader theory; [2 + 3]cycloaddition

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s11224-005-1085-0

Affiliations: 1: Department of Crystallography and Crystal Chemistry, University of lstrok ód zacute , Pomorska 149/153, PL-90236 lstrok ód zacute , Poland, Email: reczek@uni.lodz.pl ód zacute , Pomorska 149/153, PL-90236 lstrok ód zacute , Poland, Email: reczek@uni.lodz.pl "> 2: Department of Crystallography and Crystal Chemistry, University of lstrok ód zacute , Pomorska 149/153, PL-90236 lstrok ód zacute , Poland, ód zacute , Pomorska 149/153, PL-90236 lstrok ód zacute , Poland, "> 3: Section of Heteroorganic Compounds, University of lstrok ód zacute , Narutowicza 68, PL-90136 lstrok ód zacute , Poland,ód zacute , Narutowicza 68, PL-90136 lstrok ód zacute , Poland,">