Помогите, пожалуйста, со статьями:
1. Q. Qiao, H. Sun, P. Sudprasert, J. Cheng. Base-promoted [4 + 2] cycloaddition of para-quinone methides (p-QMs) and 3-cyanochromones: facile access to chromeno[2,3-b]chromenes // Org. Biomol. Chem., 2025, V. 23, Is. 47, P. 10669-10673.
- DOI:
http://dx.doi.org/10.1039/D5OB01516B
- DOI:
http://dx.doi.org/10.1039/D3OB00862B