[1] Takemura T., Kamo T., Sakuno E., Hiradate S., Fujii Y., (2013), Discovery of coumarin as the predominant allelochemical in gliricidiasepium. J. Tropical Forest Science. 25: 268-272.
[2] Xu X., Hu X., Wang J., (2013), A new synthetic protocol for coumarinamino acid. Beilstein J. Org. Chem. 9: 254-259.
[3] El Gamal N. G., El Shamy A. R., (2014), Allelopathicimpact of some antioxidants on fusariumsolanica using root rot on fababean (Viciafabae). J. Agricultural Technol. 10: 951-961.
[4] Talhi O., Schnekenburger M., Panning J., Pinto D. G. C., Fernandes J. A., Almeida Paz F. A., Jacob C., Diederich M., Silva A. M. S., (2014), Bis(4-hydroxy-2H-chromen-2-one): synthesis and effects on leukemic cell lines proliferation and nf-™bregulation. Bioorg. Med. Chem. 22: 3008-3015.
[5] Hamdi N., Puerta M. C., Valerga P., (2008), Synthesis, structure, antimicrobial and antioxidant investigations of dicoumarol and related compounds. Eur. J. Med. Chem. 43: 2541-2548.
[6] Petnapapun K., Chavasiri W., Sompornpisut P., (2013), Structure-activity relationships of 3, 3'-phenylmethylene-bis-4-hydroxycoumarins: selective and potent inhibitors of gram-positive bacteria. Hin. Pub. Cor. 56: 11-15.
[7] Kostova I., Manolov I., Momekov G., (2004), Cytotoxic activity of new neodymium (iii) complexes of bis-coumarins. Eur. J. Med. Chem. 39: 765–775.
[8] Manolov I., Raleva S., GenovaP., Savov A., Froloshka L., Dundarova D., Argirova R., (2006), Antihuman immunodeficiency virus type 1 (HIV-1) activity of rare earth metal complexes of 4-hydroxycoumarins in cell culture. Bioinorg. Chem. Applic. Article ID. 71938. 1-7.
[9] Khurana J. M., VIJ K., (2012), Nickel nanoparticles: A highly efficient catalyst for one-pot synthesis of tetraketones and biscoumarins. J. Chem. Sci. 124: 907-912.
[10] Pawar B., Shinde V., Chaskar A., (2013), N-dodecylbenzenesulfonic acid (DBSA) as a novel bronsted acid catalyst for the synthesis of bis(indolyl)methanes and bis(4- hydroxyl coumarin-3-yl)methanes in water. Green and Sustainable Chem. 3: 56-60.
[11] Karimian R., Piri F., Safari A. A., Davarpanah S. J., (2013), One-pot and chemoselective synthesis of bis(4-hydroxycoumarin) derivatives catalyzed by nanosilica chloride. J. Nanostruc. Chem. 3: 52-57.
[12] KhuranaJ. M., Kumar S., (2009), Tetrabutylammoniumbromide (TBAB): aneutral and efficient catalyst for the synthesis of biscoumarin and 3,4-dihydropyrano[c]chromene derivatives in water and solvent-free conditions. Tetrahedron Lett. 50: 4125-4127.
[13] Tavakoli-Hoseini N., Heravi M. M., Bamoharram F. F., Davoodnia A., Ghassemzadeh M., (2011), An unexpected tetracyclic product isolated during the synthesis of biscoumarins catalyzed by [MIM(CH2)4SO3H][HSO4]: characterization and x-ray crystal structure of 7-(2-hydroxy-4-oxo-4H-chromen-3-yl)-6H,7H-chromeno[4,3-b]chromen-6-one. J. Molecular Liquids. 163: 122-127.
[14] Zareai Z., Khoobi M., Ramazani A., Foroumadi A., Souldozi A., Slepokura K., Lis T., Shafiee A., (2012), Synthesis of functionalized furo[3,2-c]coumarins via a one-pot oxidative pseudo three component reaction in poly(ethylene glycol). Tetrahedron. 68: 6721-6726.
[15] Singh P., Kumar P., Katyal A., Kalra R., Dass S. K., Prakash S., Chandra R., (2010), Phosphotungstic acid: an efficient catalyst for the aqueous phase synthesis of bis-(4-hydroxycoumarin-3-yl)methanes. Catal. Lett. 134: 303-308.
[16] Karimi-Jaberi Z., Nazarifar M. R., Pooladian B., (2012), Tris(hydrogensulfato)boron as a solid heterogeneous catalyst for the rapid synthesis of a,a’-benzylidenebis(4-hydroxycoumarin) derivatives. Chin. Chem. Lett. 23: 781-784-787.
[17] Karmakar B., Nayak A., Banerji J., (2012), Sulfated titania catalyzed water mediated efficient synthesis of dicoumarols a green approach. Tetrahedron Lett. 53: 4343-4346.
[18] Qi X., Xue M. W., Sun X. J., Zhi Y., Zhou J. F., (2014), Microwave-assisted, methanesulfonicacid-catalyzed synthesis of 3,3'-(arylmethylene)bis(4-hydroxy-2H-chromen-2-ones). Res. Chem. Intermed. 40: 1187-1192.
[19] Mehrabi H., Abusaidi H., (2010), Synthesis of biscoumarin and 3,4-dihydropyrano-[c]chromene derivatives catalysed by sodium dodecyl sulfate (SDS) in neat water. J. Iran. Chem. Soc. 7: 890-894.
[20] Sedighi M., Montazeri N., (2015), Synthesis of biscoumarin derivatives as biological compounds using cellulose sulfonic acid. Adv. Studies in Biology. 7: 89-95.
[21] Tabatabaeian K., Zanjanchi M. A., Mamaghani M., Dadashi A., (2015), Ultrasonic-assisted ruthenium-catalyzed one-pot synthesis of biscoumarins. J. Adv. Chem. 11: 3532-3539.
[22] Mahmoodi N. O., Kiyani H., Tabatabaeian K., Zanjanchi M. A., (2009), Photochromic behavior of several new synthesized bis 1, 3 diazabicyclo[3.1.0]hex 3 enes. J. Phys. Org. Chem. 22: 559-567.
[23] Mahmoodi N. O., Kiyani H., Tabatabaeian K., Zanjanchi M. A., (2009), Synthesis and photochromism of 1,3-diazabicyclo[3.1.0] hex-3-ene phenol rings. Mendeleev Commun. 19: 203-205.
[24] Mahmoodi N. O., Kiyani H., Tabatabaeian K., Zanjanchi M. A., Arvand M., Sharifzadeh B., (2010), NMR structural elucidation and photochromic behavior of new 1,3-diazabicyclo[3.1.0]hex-3-ene derivatives. Russ. J. Org. Chem. 46: 884-889.
[25] Mahmoodi N. O., Parvizi J., Sharifzadeh B., Rassa M., (2013), Facile regioselective synthesis of novel bis-thiazole derivatives and their antimicrobial activity. Arch. Pharm. Chem. Life. Sci. 346: 1207-1213.
[26] Mahmoodi N. O., Rineh A., Abdollahi M., Foroumadi A., Sorkhi M., Shafiee A., (2007), Synthesis, analgesic and anti-inflammatory activity of 4-(2-phenoxyphenyl)semicarbazones. Arch. Pharm. Chem. Life. Sci. 340: 409-415.
[27] Mahmoodi N. O., Safari N., Sharifzadeh B., (2014), One-pot synthesis of novel 2-(thiazol-2-yl)-4,5-dihydropyridazin-3(2H)-one derivatives catalyzed by activated KSF. Synth. Comm. 44: 245-250.
[28] Sharifzadeh B., Mahmoodi N. O., Mamaghani M., Tabatabaeian K., Salimi-Chirani A., Nikokar I., (2013), Facile regioselective synthesis of novel bioactive thiazolyl-pyrazoline derivatives via a three-component reaction and their antimicrobial activity. Bioorg. Med. Chem. Lett. 23: 548-551.
[29] Mahmoodi N. O., Shoja S., Sharifzadeh B., Rassa M., (2014), Regioselective synthesis and antibacterial evaluation of novel bis-pyrimidine derivatives via a three-component reaction. Med. Chem. Res. 23: 1207-1213.
[30] Mahmoodi N. O., Yazdanbakhsh M. R., Kiyani H., Sharifzadeh B., (2007), Synthesis and photochromic properties of new heterocyclic derivatives of 1,3 diazabicyclo[3.1.0] hex 3 ene. J. Chin. Chem. Soc. 54: 635-641.
[31] Mahmoodi N. O., Zanjanchi M. A., Kiyani H., (2004), Photochromism of several synthesised 1,3-diazabicyclo [3,1,0]hex-3-ene derivatives. J. Chem. Res. 6: 438-440.
[32] Kun R., Mogyorosi K., Dekany I., (2006), Synthesis and structural and photocatalytic properties of TiO2/montmorillonite nanocomposites. Appl. Clay Sci. 32: 99-110.
[33] Davoodnia A., (2011), A highly efficient and fast method for the synthesis of biscoumarins using tetrabutylammoniumhexatungstate [TBA]2[W6O19] as green and reusable heterogeneous catalyst. Bull. Korean Chem. Soc. 32: 4286-4290.
[34] Padalkar V., Phatangare K., Takale S., Pisal R., Chaskar A., (2012), Silica supported sodium hydrogen sulfate and indion 190 resin: an efficient and heterogeneous catalyst for facile synthesis of bis-(4-hydroxycoumarin-3-yl) methanes. J. Saudi. Chem. Soc. 56: 2368-2371.