Tetrahedron p. 305 - 314 (1986)
Update date:2022-09-26
Topics:
Mizutani, Masato
Sanemitsu, Yuzuru
Tamaru, Yoshinao
Yoshida, Zen-Ichi
The facile synthesis of 3-methylene-2,3-dihydro-5H-thiazolo<3,2-c>pyrimidin-5-ones (9) has been performed by the catalytic action of a Pd(II) salt on 4-propargylthiopyrimidin-2(1H)-ones (6).Similar Pd(II)-catalyzed cyclization of 3-propargylthio-1,2,4-triazin-5(2H)-ones (10) gives 6-methylene-6,7-dihydro-4H-thiazolo<2,3-c><1,2,4>triazin-4-ones (11) as a main product. 3-methylene-2,3-dihydro-7H-thiazolo<3,2-b><1,2,4>triazin-7-ones (12), the regioisomers of 11, are provided by a base-catalyzed cyclization of 10.
View MoreFujian Wanke Pharmaceutical Co., LTD.
Contact:+86-598-5026002
Address:Economic development zone,jiangle county
Chengdu ZY Biochemical Technology Co., LTD
Contact:0086-28-88680086
Address:170 Qingpu Road, Shouan Town, Pujiang County
Contact:+86 755 26588093
Address:No.9 Linkong West Street, Hengdian Street, Huangpi District, Wuhan City, China.
Hangzhou GreenCo Science & Technology Co., Ltd.
Contact:86-571-88257303
Address:1713 Room,Jingui Building,Gudun Road,Xihu District,Hangzhou,China
Contact:86-21-58226973
Address:No 351,Guoshoujing Road, Zhangjiang Hi-tech Park, Pudong, Shanghai, China
Doi:10.1016/S0040-4039(00)98492-2
(1985)Doi:10.1246/cl.1985.523
(1985)Doi:10.3987/com-02-9452
(2002)Doi:10.1021/ja00347a039
(1983)Doi:10.1021/ja00305a027
(1985)Doi:10.1016/S0040-4039(00)70669-1
(1989)
