Method for manufacturing aminoaryl or heteroarylboronic acid derivatives of formula VI, by converting an aminoarene or aminoheteroarene with a carbonyl compound into a protected aminoarene or aminoheteroarene metalation of with simultaneous or subsequent reaction with a boron compound to give a protected aminoaryl or aminoheteroarylboron compound of formula V which is converted to the aminoaryl or aminoheteroarylboron compound of formula VI by cleavage of the protecting group where, is mono-, di-, tri- or polysubstituted C 5 - to C 20 -aryl, wherein 1 or 2 carbon atoms may be mutually independently replaced by O, N or N-R, preferably phenyl or pyrimidine R is H, F, Cl, Br, I, C 1 - to C 20 -, preferably C 1 - to C 8 -alkyl or C 1 -to C 20 -, particularly C 1 - to C 8 -alkoxy, wherein said alkyl or alkoxy residues are branched or unbranched and are either unsubstituted or mono- or polysubstituted, C 6 - to C 12 -aryl, particularly phenyl, C 6 - to C 12 -aryloxy, heteroaryl, heteroaryloxy, C 3 - to C 8 -cycloalkyl, particularly cyclohexyl, wherein said aryl, aryloxy, heteroaryl, heteroaryloxy and cycloalkyl residues are either unsubstituted or mono- or polysubstituted, branched or unbranched di-(C 1 -C 6)-alkylamino, diarylamino, branched or unbranched (C 1 -C 6)-alkylthio, arylthio, branched or unbranched (C 1 -C 6)-alkyloxycarbonyl or branched or unbranched di-(C 1 -C 6)-alkyloxymethylene; R' and R" each mutually independently represents an unsubstituted or mono- or polysubstituted branched or unbranched (C 1 -C 6)-alkyl, aryl, heteroaryl, benzyl, benzyloxycarbonyl, particularly phenyl and substituted phenyl group R' and R" together with the carbon atom to which they are attached may also form an unsubstituted or mono- or polysubstituted ring, preferably a 5- to 7-membered ring, in particular, a C 5 - to C 7 -cycloalkyl; X is H, F, Cl, Br or I, particularly Cl, Br or I; Y 1, Y 2, Y 3 are mutually independently H, F, Cl, Br or I, particularly Cl C 1 -C 20 -alkyloxy, particularly C 1 -C 8 -alkyloxy, which is branched or unbranched and is either unsubstituted or mono- or polysubstituted or two residues Y 1-3 together form a ring; and wherein "mono- or polysubstituted" or "substituted" signifies that the respective residue is mono-, or where possible, di-, tri- or polysubstituted by halogen, preferably chlorine or bromine, and/or by nitro, cyano, hydroxyl, branched or unbranched (C 1 -C 6)-alkyl, branched or unbranched (C 1 -C 6)-alkyloxy, amino, branched or unbranched mono-(C 1 -C 6)-alkylamino, branched or unbranched di-(C 1 -C 6)-alkylamino, monoarylamino, diarylamino, branched or unbranched (C 1 -C 6)-alkylthio, arylthio, carboxyl and/or branched or unbranched (C 1 -C 6)-alkyloxycarbonyl. is mono-, di-, tri- or polysubstituted C 5 - to C 20 -aryl, wherein 1 or 2 carbon atoms may be mutually independently replaced by O, N or N-R, preferably phenyl or pyrimidine R is H, F, Cl, Br, I, C 1 - to C 20 -, preferably C 1 - to C 8 -alkyl or C 1 -to C 20 -, particularly C 1 - to C 8 -alkoxy, wherein said alkyl or alkoxy residues are branched or unbranched and are either unsubstituted or mono- or polysubstituted, C 6 - to C 12 -aryl, particularly phenyl, C 6 - to C 12 -aryloxy, heteroaryl, heteroaryloxy, C 3 - to C 8 -cycloalkyl, particularly cyclohexyl, wherein said aryl, aryloxy, heteroaryl, heteroaryloxy and cycloalkyl residues are either unsubstituted or mono- or polysubstituted, branched or unbranched di-(C 1 -C 6)-alkylamino, diarylamino, branched or unbranched (C 1 -C 6)-alkylthio, arylthio, branched or unbranched (C 1 -C 6)-alkyloxycarbonyl or branched or unbranched di-(C 1 -C 6)-alkyloxymethylene; R' and R" each mutually independently represents an unsubstituted or mono- or polysubstituted branched or unbranched (C 1 -C 6)-alkyl, aryl, heteroaryl, benzyl, benzyloxycarbonyl, particularly phenyl and substituted phenyl group R' and R" together with the carbon atom to which they are attached may also form an unsubstituted or mono- or polysubstituted ring, preferably a 5- to 7-membered ring, in particular, a C 5 - to C 7 -cycloalkyl; X is H, F, Cl, Br or I, particularly Cl, Br or I; Y 1, Y 2, Y 3 are mutually independently H, F, Cl, Br or I, particularly Cl C 1 -C 20 -alkyloxy, particularly C 1 -C 8 -alkyloxy, which is branched or unbranched and is either unsubstituted or mono- or polysubstituted or two residues Y 1-3 together form a ring; and wherein