Supported by the National Natural Science Foundation of China(No.20772041);the Key Project of Chinese Ministry of Education(No.107082)
3,5,6,8-Tetrahydro-4H-thiopyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-ones(7) were synthesized via the base catalytic reactions of amines or phenols with carbodiimides(5), which were obtained from the aza-Wittig ...
support of this work by the National Natural Science Foundation of China(No.20772041);Key Project of Science and Technology of Ministry of Education of China(No.107082)
5,6-Dihydrothieno[3',2':4,5]thieno[2,3-d]pyrimidin-4(3H)-ones 6 were synthesized in yields of 71-87% by a consecutive method, which includes aza-Wittig reaction of iminophosphorane 3 with aromatic isocynate to gi...
the National Natural Science Foundation of China(No.20772041);the Opening Foundation of the Key Labo-ratory of Three Gorges University of China(No.2006NP01);the Key Project of Chinese Ministry of Education(No.107082)
The title compounds 3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-ones(6) were synthesized by base catalytic reactions of secondary amines with carbodiimides 4, which were obtained from the aza-Witti...