Abstract Reaction of thiazolidin-2-cyanamide and substituted benzyl bromide compounds in acetonitrile at room temperature afforded the 3-(2′-substituted benzyl)thiazolidin-2-cyanamide derivatives 1–13 in good yields. Compounds 1–13 were characterized by proton nuclear magnetic resonance ( 1 H NMR) and infrared spectroscopies, of which the structures of the isomeric o -, m -, and p -fluoro derivatives 4–6 were established by single crystal X-ray crystallography. Compound 4 crystallizes in the monoclinic space group P 2 1 / n , with a = 9.177(19), b = 8.551(18), c = 14.090(3) Å, β = 98.243(3)°, and Z = 4. The unit cell of 5 has a monoclinic P 2 1 /c symmetry with the cell parameters a = 9.289(2), b = 14.057(4), c = 8.574(2) Å, β = 100.350(3)°, and Z = 4. The unit cell of 6 also has a monoclinic P 2 1 /c symmetry with the cell parameters a = 9.333(4), b = 14.034(5), c = 8.508(3) Å, β = 99.15(5)°, and Z = 4. Graphic Abstract A series of 3-(2′-substituted benzyl)thiazolidin-2-cyanamide derivatives were efficiently synthesized via the reaction of benzyl bromide compounds with thiazolidin-2-cyanamide, of which the structures of the isomeric o-, m-, and p-fluoro derivatives were characterized by X-ray crystallography.

中文翻译：

---

苄基取代的噻唑烷-2-氰胺衍生物的合成和晶体结构

摘要 噻唑烷-2-氰胺和取代的苄基溴化合物在室温下在乙腈中反应以良好的收率得到3-(2'-取代的苄基)噻唑烷-2-氰胺衍生物1-13。化合物1-13通过质子核磁共振（ 1 H NMR）和红外光谱表征，其中异构的邻-、间-和对-氟衍生物4-6的结构由单晶X射线晶体学确定. 化合物 4 在单斜空间群 P 2 1 / n 中结晶，a = 9.177(19)，b = 8.551(18)，c = 14.090(3) Å，β = 98.243(3)°，Z = 4。 5 的晶胞具有单斜 P 2 1 /c 对称性，晶胞参数 a = 9.289(2), b = 14.057(4), c = 8.574(2) Å, β = 100.350(3)°, and Z = 4. 6 的晶胞也具有单斜 P 2 1 /c 对称性，晶胞参数 a = 9.333(4)，