Synthesis and structure of novel Si-substituted silylpropyl derivatives of 2-mercaptobenzoxazole and 2-mercaptobenzothiazole
作者:Ekaterina А. Grebneva、Yuliya I. Bolgova、Olga M. Trofimova、Aleksander I. Albanov、Tat’yana N. Borodina
DOI:10.1007/s10593-019-02532-3
日期:2019.8
2-[(trimethoxysilyl)propylsulfanyl]benzoxazole or –benzothiazole with boron trifluoride etherate led to a previously unknown hydrolytically unstable Si-fluoropropyl derivatives of 2-mercaptobenzoxazole or 2-mercaptobenzothiazole, C6H4N(Y)CS(CH2)3SiF3 (Y = O, S). By transesterification of 2-[(trimethoxysilyl)-propylsulfanyl]benzoxazole by tris(2-hydroxyethyl)amine, a new silatranylpropyl derivative of 2-mercaptobenzoxazole
通过(3-)的氯原子的亲核取代合成了2-巯基苯并恶唑的碳官能团(三甲氧基甲硅烷基)丙基衍生物C 6 H 4 NOCS(CH 2)3 Si(OMe)3,该衍生物含有四配位硅原子。具有苯并恶唑-2-基硫烷基的氯丙基)-三甲氧基硅烷。2-[((三甲氧基甲硅烷基)丙基硫烷基]苯并恶唑或-苯并噻唑与三氟化硼醚化物的反应导致了2-巯基苯并恶唑或2-巯基苯并噻唑的先前未知的水解不稳定的Si-氟丙基衍生物,C 6 H 4 N(Y)CS(CH 2)3 SiF 3(Y = O,S)。通过三(2-羟乙基)胺对2-[((三甲氧基甲硅烷基)-丙基硫烷基]苯并恶唑进行酯交换反应,得到一种新的2-巯基苯并恶唑的杂硅烷基丙基衍生物,其分子内配位键为N→Si和五配位的硅原子C 6 H 4 NOCS( CH 2)3的Si(OCH 2 CH 2)3 N,得到。