在超临界二氧化碳中和氧气存在的条件下,将PdCl2/高分子聚苯乙烯负载苯酚(PS-Phenol)共催化剂成功地应用于丙烯酸甲酯与甲醇的缩醛化反应中. 当丙烯酸甲酯全部转化时,缩醛化产物 3,3-二甲氧基丙酸甲酯的最佳产率和选择性分别为97.7%和100%. 与小分子酸性助催化剂相比, PS-Phenol可以通过简单的过滤分离而循环再利用,这有利于贵金属钯的分离与回收.
参考文献
[1] | Collman J P;Chong A O;Jameson G B;Oakley R T Rose E Schmittou E R Ibers J A .[J].Journal of the American Chemical Society,1981,103(03):516. |
[2] | Miki S;Suide H;Tawada H;Iwano N Aoki I Adachi M .[P].WO 0134557,2001. |
[3] | Shiraishi M;Fukumoto S;Kusumoto K .[P].WO 9942442,1999. |
[4] | Limbach M;Dalai S;de Meijere A .[J].Advanced Synthesis and Catalysis,2004,346(07):760. |
[5] | Hosokawa T;Ohta T;Kanayama S;Murahashi S I .[J].Journal of Organic Chemistry,1987,52(09):1758. |
[6] | Hosokawa T;Aoki S;Murahashi S I.[J].Synthesis,1992(06):558. |
[7] | Hosokawa T;Nakahira T;Takano M;Murahashi S I .[J].Journal of Molecular Catalysis,1992,74(1-3):489. |
[8] | Wang ZY;Jiang HF;Qi CR;Wang YG;Dong YS;Liu HL .PS-BQ: an efficient polymer-supported cocatalyst for the Wacker reaction in supercritical carbon dioxide[J].Green chemistry,2005(8):582-585. |
[9] | Kishi A;Sakaguchi S;Ishii Y .[J].Organic Letters,2000,2(04):523. |
[10] | Jia L Q;Jiang H F;Li J H.[J].Chemical Communications,1999(11):985. |
[11] | Jiang H F;Jia L Q;Li J H .[J].Green Chemistry,2000,2(04):161. |
[12] | Wang ZY;Jiang HF;Ouyang XY;Qi CR;Yang SR .Pd(II)-catalyzed acetalization of terminal olefins with electron-withdrawing groups in supercritical carbon dioxide: selective control and mechanism[J].Tetrahedron,2006(42):9846-9854. |
[13] | 贾莉英,陈晓青,危俊婷,刘英.新型离子交换树脂的合成及其对Rb+的交换性能[J].中南工业大学学报(自然科学版),2001(01):54-57. |
[14] | Benaglia M;Puglisi A;Cozzi F .[J].Chemical Reviews,2003,103(09):3401. |
[15] | Toy P H;Shi M .[J].Tetrahedron,2005,61(51):12025. |
[16] | Wang Y G;Jiang H F;Liu H L;Liu P .[J].Tetrahedron Letters,2005,46(22):3935. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%