TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (disclosed): Phthalocyanine derivative of formula (A) is oxidized, and hydroxyl group on benzene ring is carbonylated to obtain phthalocyanine compound (I,II). SPECIFIC COMPOUNDS - 10 Phthalocyanine compounds (I) are disclosed e.g. 12,13,27,28-tetrakis(2,6-dimethylphenoxy)-6,21-dihydroxy-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,25(30),26,28-pentadecaene-4,19-dione of formula (Ia), 12,27,28-tris(2,6-dimethylphenoxy)-6,21-dihydroxy-13-(2-methylphenoxy)-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,26,28-tetradecaene-4,19-dione, 12,13,27,28-tetrakis(dodecyloxy)-6,21-dihydroxy-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,25(30),26,28-pentadecaene-4,19-dione, 12,13,27,28-tetrakis(hexyloxy)-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,25(30),26,28-pentadecaene-4,19-dione, and 2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,25(30),26,28-pentadecaene-4,19-dione    EXAMPLE - 5,6-Bis(2,6-dimethyl phenoxy)-1,3-diimino isoindoline (1.56 mmol), 4,5-bis(2,6-dimethyl phenoxy)phthalonitrile, 4,6- diamino resorcinol dihydrochloride (1.56 mmol), and triethylamine (0.30 ml) were added to dry ethanol (18 ml) in argon atmosphere, stirred, heated at 80 degrees C and refluxed for 24 hours. After returning reaction liquid to room temperature, the reaction solution was dropped at ethanol and insoluble material was filtered. The insoluble material was dissolved in chloroform, purified, to obtain 12,13,27,28-tetrakis(2,6-dimethylphenoxy)-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),4,7,9,11,13,15,17,19,22(32),23,25(30),26,28-pentadecaene-4,6,19,21-tetrol (A) as brown solid at yield of 79%. 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (0.27 mmol) was added to chloroform solution of compound (A) (0.32 mmol), and stirred for 25 minutes at room temperature. The solvent was distilled off after completion of reaction, the residue was purified, 12,13,27,28-tetrakis(2,6-dimethylphenoxy)-6,21-dihydroxy-2,8,17,23,31,33-hexaazaheptacyclo(22.6.1.13,7.19,16.118,22.010,15.025,30)tetratriaconta-1,3(34),5,7,9,11,13,15,17,20,22(32),23,25(30),26,28-pentadecaene-4,19-dione was obtained as green solid at yield of 70%.