This work was supported by the National Natural Science Foundation of China(No.52173050);the National Key Research and Development Program of China(No.2021YFB3702800).
In the preparation process of crosslinked polyvinyl chloride(c-PVC)foam by isocyanate,the formulated mixture is generally required to be carried out under the condition of isolated water,so as to avoid the mixing diff...
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 ...
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...