The compound (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one is a versatile building block in chemical synthesis due to its unique structural features. This compound can be used as a key intermediate in the synthesis of various pharmaceuticals, agrochemicals, and materials.In chemical synthesis, (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one serves as a valuable starting material for the construction of complex organic molecules. Its specific functional groups, such as the chloro, cyclopropyl, ethynyl, and trifluoromethyl moieties, enable diverse synthetic transformations to take place, allowing for the introduction of new chemical entities and modification of molecular structures.By incorporating this compound into synthetic pathways, chemists can access a wide range of chemical derivatives with tailored properties. Its presence can enhance the biological activity, physical characteristics, and overall performance of the final products. As a result, (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one plays a crucial role in advancing the field of chemical synthesis and enabling the creation of novel compounds for various applications.