Boron-containing organic compound and applications thereof

A boron-containing organic compound as shown in general formula (I):

• wherein R1 is selected from H, D, C1-4 alkyl group, an alkyl-substituted phenyl group, or an aryl-substituted amino group;
• Z is independently selected from NR4;
• X and Y are independently selected from O or NR5, and at least one of X and Y is selected from O;
• R2 and R3 are each independently selected from methyl, phenyl or R2 and R3, together with carbon atoms connecting R2 and R3 form a ring consisting of 3-6 atoms;
• R4 is selected from C1-4 alkyl group or an alkyl-substituted phenyl group;
• R5 is selected from phenyl, an alkyl-substituted phenyl, an alkyl-substituted biphenyl, or an alkyl-substituted fluorenyl;
• and
• Ar1 is selected from an alkyl-substituted phenyl, dibenzothiophene, naphthalene, or an alkyl-substituted fluorenyl.

A boron-containing organic compound as shown in general formula (I):

• wherein R1 is selected from H, D, methyl, tert-butyl, a substituted phenyl, or N-aryl substituted amino group;
• the substituted phenyl is selected from a mono-tert-butyl-substituted or a poly-tert-butyl-substituted phenyl group, and the N-aryl substituted amino group is N,N-p-tolyl substituted amino group;
• Z is independently selected from CR2R3, NR4, or S;
• X and Y are independently selected from O or NR5;
• R2 and R3 are each independently selected from methyl or 9-fluorenyl;
• R4 is selected from methyl, tert-butyl, or 3,5-di-tert-butyl substituted phenyl;
• R5 is selected from tert-butyl-substituted phenyl, tert-butyl-substituted biphenyl, or 9,9-dimethyl-fluorenyl-substituted phenyl;
• and
• Ar1 is selected from tert-butyl-substituted benzene, tert-butyl-substituted benzothiophene, methyl-substituted benzene, naphthalene, or 9,9-dimethylfluorene.