摘要:
4-Substituted 5-polycyclylpyrimidine compounds in which the 5-substituent is polycyclic and is attached to the pyrimidine moiety through an aliphatic carbon atom, such as 5-(2,2-dimethylindan-1-yl)-4-methylthiopyrimidine, were prepared and found to possess excellent herbicidal activity. The compounds are especially useful for the control of undesirable vegetation in paddy rice.
摘要:
Thermochemical ablation techniques may provide ablation of bodily tissue using chemical reaction energy. The chemical reaction energy is provided by chemical reactions including a highly reactive electrophilic reagent provided to a target tissue location.