(1R,2S,7S,9S)-3,3,7-Trimethyl-8-methylenetricyclo[5.4.0.0~2,9~]undecane(CAS: 475-20-7)

(1R,2S,7S,9S)-3,3,7-Trimethyl-8-methylenetricyclo[5.4.0.0~2,9~]undecane is a crystalline compound with a molecular weight of approximately 198.34 g/mol. It exhibits low solubility in water but good solubility in organic solvents like ethanol and acetone. This compound is relatively stable but can undergo reactions under certain conditions, such as in the presence of strong acids or bases. It is an important intermediate in organic synthesis and pharmaceuticals.

(1R,2S,7S,9S)-3,3,7-Trimethyl-8-methylenetricyclo[5.4.0.0~2,9~]undecane is commonly synthesized via a Wittig reaction or a Claisen rearrangement. The process involves the use of organometallic reagents and typically yields a mixture with high selectivity and moderate to good yield. Common catalysts include sodium hydride or sodium tert-butoxide.

(1R,2S,7S,9S)-3,3,7-Trimethyl-8-methylenetricyclo[5.4.0.0~2,9~]undecane finds application in various industries, including pharmaceuticals, where it is used as a precursor for the synthesis of drugs. It is also used in the production of certain types of polymers and as a component in sensor technologies and semiconductor manufacturing processes.

When handling (1R,2S,7S,9S)-3,3,7-Trimethyl-8-methylenetricyclo[5.4.0.0~2,9~]undecane, it is essential to wear proper personal protective equipment (PPE), including gloves and safety goggles. Work should be conducted in a well-ventilated area or fume hood. Spills should be cleaned up with appropriate absorbent materials and disposed of according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.