Chemistry is traditionally divided into organic and inorganic chemistry. Formula: C26H29N3O2, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 1552-42-7
An improved process for producing fluorene compounds of the following formula (II) is disclosed: STR1 (wherein R1, R2 and R3 are independently a hydrogen atom, an alkylamino group, a dialkylamino group, a pyrrolidino group or a piperdino group; X and Y are independently a carbon atom or a nitrogen atom; and with the proviso that R1 and R2 are not hydrogen atoms simultaneously). The process comprises reacting a lactone compound of the formula (I) (variables being defined as in formula (II) ) STR2 with a mixture of an aluminum halide, a carbonyl compound, and a hydroxy bearing compound.
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