Patent classifications
C07C33/50
Fluorene compound, light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
A substance having a hole-transport property and a wide band gap is provided. A fluorene compound represented by a general formula (G1) is provided. In the general formula (G1), .sup.1 and .sup.2 separately represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; Ar.sup.1 represents a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, a substituted or unsubstituted 4-dibenzothiophenyl group, or a substituted or unsubstituted 4-dibenzofuranyl group; n and k separately represent 0 or 1; Q.sup.1 represents sulfur or oxygen; and R.sup.1 to R.sup.15 separately represent hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms. ##STR00001##
Fluorene compound, light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
A substance having a hole-transport property and a wide band gap is provided. A fluorene compound represented by a general formula (G1) is provided. In the general formula (G1), .sup.1 and .sup.2 separately represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; Ar.sup.1 represents a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, a substituted or unsubstituted 4-dibenzothiophenyl group, or a substituted or unsubstituted 4-dibenzofuranyl group; n and k separately represent 0 or 1; Q.sup.1 represents sulfur or oxygen; and R.sup.1 to R.sup.15 separately represent hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms. ##STR00001##
Method and compound useful in preparation of orexin-2 receptor antagonist, and lemborexant having few impurities
The present application discloses a method and a compound that are useful for preparation of a compound of Formula (XI). Furthermore, the present application discloses the compound of Formula (XI) comprising a small amount of impurities. ##STR00001##
Method and compound useful in preparation of orexin-2 receptor antagonist, and lemborexant having few impurities
The present application discloses a method and a compound that are useful for preparation of a compound of Formula (XI). Furthermore, the present application discloses the compound of Formula (XI) comprising a small amount of impurities. ##STR00001##
Process for preparation of intermediates
Disclosed herein is a process for preparation of 1-chloro-2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)propan-2-ol (compound of formula (I)) and 2-(1-chlorocyclopropyl)-2-[(2-chlorophenyl)methyl]oxirane (compound of formula (II)), which are synthetic intermediates in the preparation of triazole fungicides. The process comprises reacting a Grignard reagent of 2-chlorobenzyl halide with 1-chloro-1-chloroacetylcyclopropane, wherein said reaction is carried out at temperatures between 0 C. and 100 C. and characterized in that said reaction is carried out in a solvent system comprising methyl tetrahydrofuran and toluene.
Process for preparation of intermediates
Disclosed herein is a process for preparation of 1-chloro-2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)propan-2-ol (compound of formula (I)) and 2-(1-chlorocyclopropyl)-2-[(2-chlorophenyl)methyl]oxirane (compound of formula (II)), which are synthetic intermediates in the preparation of triazole fungicides. The process comprises reacting a Grignard reagent of 2-chlorobenzyl halide with 1-chloro-1-chloroacetylcyclopropane, wherein said reaction is carried out at temperatures between 0 C. and 100 C. and characterized in that said reaction is carried out in a solvent system comprising methyl tetrahydrofuran and toluene.
METHOD AND COMPOUND USEFUL IN PREPARATION OF OREXIN-2 RECEPTOR ANTAGONIST, AND LEMBOREXANT HAVING FEW IMPURITIES
The present application discloses a method and a compound that are useful for preparation of a compound of Formula (XI). Furthermore, the present application discloses the compound of Formula (XI) comprising a small amount of impurities.
##STR00001##
METHOD AND COMPOUND USEFUL IN PREPARATION OF OREXIN-2 RECEPTOR ANTAGONIST, AND LEMBOREXANT HAVING FEW IMPURITIES
The present application discloses a method and a compound that are useful for preparation of a compound of Formula (XI). Furthermore, the present application discloses the compound of Formula (XI) comprising a small amount of impurities.
##STR00001##