1.
Org Lett
; 3(26): 4279-81, 2001 Dec 27.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11784197
RESUMO
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) is a novel and active catalyst in promoting the methylation reaction of phenols, indoles, and benzimidazoles with dimethyl carbonate under mild conditions. Additional rate enhancement is accomplished by applying microwave irradiation. By incorporating tetrabutylammonium iodide, the same microwave reactions can be further accelerated. By combining these acceleration strategies, very slow chemical transformations that take up to several days can be performed efficiently in high yield within minutes. [reaction: see text]
2.
Taiwan Yi Xue Hui Za Zhi
; 83(2): 233-6, 1984 Feb.
Artigo
em Zh
| MEDLINE
| ID: mdl-6587002