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(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid is an important intermediate in the synthesis of organic compounds. It is widely used in the pharmaceutical, agricultural, and biochemical industries.

(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid is a white crystal or powder with a melting point of 187-189°C and a boiling point of 338-340°C. It is soluble in methanol and slightly soluble in water.

(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid is used as a key intermediate in the synthesis of fluorescent dyes, pharmaceutical drugs, and other organic compounds. It is also used as a reagent for the preparation of hydroborates, arylboronates, and halides. Furthermore, it can be used in the synthesis of polymers, polyurethanes, and polycarbonates.

(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid can be prepared by the reaction of dimethyl fluorene and boron trifluoride in an inert atmosphere. It can also be used as a starting material for the synthesis of other derivatives such as arylboronic acids, boronic esters, and boronic anhydrides.

(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid is a useful starting material for organic syntheses due to its versatile reactivity. It can be used as a reagent for the synthesis of a wide range of compounds. It is also used as a catalyst for the synthesis of polymers, polyurethanes, and polycarbonates.

(9,9-Dimethyl-9H-fluoren-3-yl)boronic acid is a stable compound and can be stored at room temperature in an airtight container. It is an important intermediate in the synthesis of organic compounds and can be used in a variety of applications.