NOVELTY - A phthalonitrile (1) is reduced, to obtain isoindole (2). The obtained isoindole (2) and tripyrane (3) are reacted and oxidized, to obtain a halogen-containing benzoporphyrin (4).    USE - Manufacture of halogen-containing benzoporphyrin (claimed) used for organic thin-film transistor, including but not limited to organic solar cell material, organic-semiconductor material, organic electronic device, organic electroconductive material, n-type organic field effect type transistor, nonlinear optics material, photoelectric transducer dopant, photoconductive carrier generation material, optical recording material and catalyst material.    ADVANTAGE - The halogen-containing benzoporphyrin is efficiently manufactured using simple method.    DETAILED DESCRIPTION - A phthalonitrile of formula (1) is reduced, to obtain isoindole of formula (2). The obtained isoindole (2) and tripyrane of formula (3) are reacted and oxidized, to obtain a halogen-containing benzoporphyrin of formula (4).    X=halogen;    Y'=R1, OR2, or SR3;    R1-R3=alkyl, aryl, or alkylaryl;    Z=CHO or CH2OH;    R4-R9=H, halogen, nitro, cyano, hydroxyl, (un)substituted amino, carboxylic amide, sulfonic acid amide, alkoxyl, thioalkoxyl, formyl, acyl, carboxyl, alkoxycarbonyl, (un)substituted carbamoyl, sulfonic, sulfonic ester, (un)substituted sulfamoyl, linear, branched or cyclic aliphatic hydrocarbon, linear, branched or cyclic halogenated aliphatic hydrocarbon, aromatic hydrocarbon, halogenated-aromatic-hydrocarbon, aliphatic heterocycle, halogenated-aliphatic heterocycle, aromatic heterocycle or halogenated aromatic heterocycle, or at least one of R4 and R5, R6 and R7, and R8 and R9 may combine to form aliphatic hydrocarbon ring, halogenated aliphatic hydrocarbon ring, aromatic hydrocarbon ring, halogenated-aromatic-hydrocarbon ring, aliphatic heterocyclic ring, halogenated-aliphatic heterocyclic ring, aromatic heterocycle or halogenated-aromatic heterocycle;    m+n=4 or less;    m=1-4;and    n=0-3.    An INDEPENDENT CLAIM is included for halogen-containing benzoporphyrin complex of formula (5).    M=metal or semimetal ion.