Synthesis and structural studies on thioimides, R2CNSR and sulfur diimides, R2CNSNCR2
作者:Rebecca L. Melen、Dana J. Eisler、Rachel A. Hewitt、Jeremy M. Rawson
DOI:10.1039/c2dt32878j
日期:——
afforded the thiazyl heterocycle [py2CNS]Cl (5) via intramolecular coordination. The structures of 1a, 1b, 2a, 2b, 3a, 3b and 4 are determined by X-ray diffraction. In the case of 4, bond lengths and DFT studies reveal greater π-delocalisation than in 1–3.
的反应pH 2 Ç O和PY 2 ç ö与Li [N(森达3)2 ]和ArSCl(AR = 2-O 2 NC 6 H ^ 4,2,4-(O 2 N)2 C ^ 6 ħ 3)生成Ph 2 C NSAr(分别为1a和1b)和py 2 C NSAr(分别为2a和2b)。的反应芴酮,用Li [N(SiMe 3)2 ]和ArSCl在相似条件下的C 12 H 8 C O得到C 12 H 8 CNSAr(分别为3a和3b)。同时的反应芴酮与Li [N(SiMe 3)2 ]和SCl 2以2:2:1的比例反应,得到二酰亚胺硫,C 12 H 8 CNSNCC 12 H 8(4),py 2 C O与Li [N( SiMe 3)2 ]和SCl 2在相似条件下通过分子内配位得到噻唑基杂环[py 2 CNS] Cl(5)。的结构1A,1B,2A,2B,3A,3B和4通过X射线衍射确定。在4的情况下,键长和DFT研究表明,与1-3相比,π的离域性更大。