摘要
有机锡化合物具有不同于其他有机金属化合物的结构稳定性、对空气和水的不敏感性,以及在有机合成反应中体现出的良好催化活性,因而广泛应用于酯化反应、羰基缩醛保护和脱保护、开环聚合等领域^[1-5]。另外,与传统的Lewis酸催化剂相比,它不仅不腐蚀设备,而且其催化性能还可通过与中心锡原子相连的配体的类型进行调整^[6]。
An organotin compound, [n-Bu2Sn(OH)OS(O)2(p-ClPh)]2, has been synthesized by the reaction of n-Bu2SnO with p-C1PhSO3H and characterized by IR, elemental analysis and X-ray diffraction single crystal structure analysis. The results show that it possesses a polymeric sheet structure with repeating 20-membered macrocycles by virtue of the bridging bidentate sulfonate groups; the crystal belongs to monoclinic, space group P21/c with a=1.460 72(12) nm, b=0.89741 (11) nm, c=2.89694 (14) nm,β=107.629(4)°, V=3.6192 (6) nm^-3, Z=4; all the tin atoms are six- coordinated in a distorted octahedral geometry. The compound showed the very high catalytic activity in the transesterification of dimethyl carbonate and phenol to diphenyl carbonate.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2009年第12期2225-2228,共4页
Chinese Journal of Inorganic Chemistry
基金
国家高技术研究发展计划(“863”计划)(No.2003AA321010)
湖北省自然科学基金重点项目(No.2008CDA009)资助
关键词
二丁基锡磺酸酯
晶体结构
酯交换
碳酸二苯酯
dibutyltin sulfonate
crystal structure
transesterification
diphenyl carbonate