Ertuğrul Gazi Sağlam

• Professor
• Professor at Marmara University

Metalosen içeren, bilinen bir ferrosenilditiyofosfonato Ni(II) kompleksinin [Ni(FcL)2] (FcL= O-1-fenil-1-propil(ferrosenil)ditiyofosfonat), bis(difenilfosfino)metan (DPPM) ve Na[B(Ph)4] ile reaksiyonundan yeni bis-(difenilfosfino)metan[O-1-fenil-1-propil(ferrosenil)ditiyofosfonato]Ni(II)tetrafenilborat ([Ni(FcL)(DPPM)]+[BPh4]-), iyonik kompleksi se...

2,4- bis (3,4-dimethoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide (SAV-A1) was treated with five different alcohols to obtain dithiophosphonic acids (HLn, HS 2 P((2,4-CH 3 O) 2 -C 6 H 3 )(ORn); n=1-5, R1=n-pentyl-; R2=2-pentyl-; R3=4- tert -but-benzyl-; R4=2-propyl-; R5=2-butyl-). HLn series were converted to their ammonium salts, ([NH 4 Ln...

Bu çalışmada, 2,4-bis-(3-metoksitolil)-1,3-ditiya-2,4-difosfetan 2,4-disülfür ([((CH3)C6H3(OCH3)-P(S)S)2]) bileşiği yeniden sentezlendi. Bu bileşiğin alkollerle reaksiyonundan literatürde bilinen iki ditiyofosfonik asiti ([HS2P(R’)(ORn)], HLn; R’=(CH3)C6H3(OCH3); R1= Etil-, L1, R2= 2-propil-, L2) sentezlendi. Ham ditiyofosfonik asitler kuru amonyak...

In this study, perthiophosphonic acid anhydrides which are previously synthesized (2,4-bis(3-methoxytolyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide ([((3-methoxytolyl)P(S)S)2], SAV-B1 reagent and 2,4-bis(ferrocenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide [((ferrocenyl)P(S)S)2], FcLR, Ferrocenyl Lawesson's Reagent) react with alcohols to obtain...

New 2,4-bis(2,4-dimethoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide, (SAV-A2), was synthesized from the reaction P4S10 and 1,3-dimethoxybenzene. SAV-A2 was reacted with alcohols to form dithiophosphonic acid monoesters (HLn, HS2P((2,4-CH3O)2C6H3)(ORn); n=1-3, R1=2-butyl-; R2=n-pentyl-; R3=4-tert-but-benzyl-). The acids were converted to the...

The first synthesis of 2,4‐bis(3,4‐dimethoxyphenyl)‐1,3‐dithia‐2,4‐diphosphetane 2,4‐disulfide, (SAV‐A1 reagent), was achieved. Seven oxo‐alkyl esters, (HLn), were synthesized thereof. Ni (II) complexes, ([Ni (Ln)2]), of these ligands were prepared in ethanol. The structures were identified by spectral studies. Ni (II) complexes were unambiguously...

A series of new ferrocenyldithiophosphonato complexes of Cd(II) and Hg(II) ions were synthesized and characterized by spectroscopic methods. The antiproliferative activities of the ligands and their Cd(II) complexes were screened against four human cell lines using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) method. While the...

Vibrational spectroscopy (FT-IR and Raman) of trans-bis-[O-3-methyl-1-butyl-(ferrocenyl)dithiophosphonato]nickel(II) complex, [Ni(FcL)2], which was known previously has been reported. On the other hand, the density functional theory (DFT) calculations on the compound [Ni(FcL)2] have been performed to compare the experimental vibrational frequencies...

Seven different dithiophosphonato Ni(II) complexes, [Ni(Xn)2], (Xn = (4-MeO-C6H4)PS2(OR) where R = 3-pentyl-, X1; R = 1-phenyl-1-propyl-, X2; R = 4-tert-butyl benzyl-, X3; R = diphenylmethyl-, X4; R = 4-tert-butyl cyclohexyl-, X5; R = 3-phenyl-1-propyl-, X6; R = 3-methyl-1-butyl-, X7) and three different dithiophosphinato Ni(II) complexes, [Ni(Yn)2...

Ferrocenyldithiophosphonate type ligands in salt forms, ([NH4(FcLn)], FcLn= Fc(RO)P(S)S ; n= 1, R= 3-phenyl-1-propyl- ; n= 2, R= 1-phenyl-1-propyl- ; n= 3, R= 3-methyl-1-butyl- ; n= 4, R= 3-pentyl-) were prepared and reacting them with Ni(II) salts, complexes of the general formula [Ni(FcLn)2] were obtained. They were further treated with pyridine...

Two novel perthiophosphonic acid anhydrides, 2,4-bis(R x,y)-1,3-dithia-2,4-diphosphetane 2,4-disulfide [(R x,y-P(S)S)2; R x =3-methoxytolyl (SAV-B1) and R y =2-methoxytolyl (SAV-B2)] were synthesized. From the reaction of SAV-B1 and SAV-B2 with alcohols, four new dithiophosphonic acids [HS2P(R x,y)(ORn)] (Rn; R1=ethyl R2=2-propyl) were prepared. Th...

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New Cd(II) and Hg(II) complexes of five previously known dithiophosphonic acids ((p- MeO-C6H4)PS(SH)(OR), HLn, (n= 1-5); R= 3-pentyl-, HL1; R=1-phenyl-1-propyl-, HL2; R= 4-tertbutylbenzyl-, HL3; R= diphenylmethyl-, HL4; R= 4-tert-butylcyclohexyl-, HL5) were prepared and characterized. To do this, the dithiophosphonic acids involved were treated wit...

In this study, four new dithiophosphonic acid complexes, namely, trans-bis-[O–3-phenyl-1-propyl-(4-methoxyphenyl) dithiophosphonato] nickel (II), {Bis-pyridine-bis-(O–3–phenylpropyl (4-methoxyphenyl) dithiophosphonato]} nickel (II), bis-{bis-( O–3-phenyl-1-propyl- (4-methoxyphenyl) dithiophosphonato] cadmium (II)} and bis - { bis - ( O–3 - phenyl –...

Five new dithiophosphonic acids ((p-MeO-C6H4)PS(SH)(OR), HLn, (n = 1–5); R = 3-pentyl-, HL1; R = 1-phenyl-1-propyl-, HL2; R = 4-tert-butyl benzyl-, HL3; R = diphenylmethyl-, HL4; R = 4-tert-butylcyclohexyl-, HL5) were prepared by the reaction of Lawesson reagent with the corresponding alcohols. As the acids were viscous liquids and difficult to pur...

Four known dithiophosphinic acids, DTPA, were synthesized and their zinc complexes were newly prepared. The complexes have been proven to have the structures [Zn(µ-DTPAⁿ)2(DTPAⁿ)2], ([DTPAⁿ]= Rⁿ(R)P(S)H, R= 4-CH3O-C6H4-; R¹= iso-amyl-, DTPA¹; R²= iso-butyl-, DTPA²; R³= sec-butyl-, DTPA³; R⁴= iso-propyl-, DTPA⁴). The DTPAs were prepared by the react...

Some 1,3-dithiadiphosphetane 2,4-disulfides (X2P2S4, X: Fc, FcLR; X: CH3O‒C6H4‒, LR) were allowed to react with alcohols to obtain dithiophosphonic acids (X(OR)PS2H). These were converted to the corresponding ammonium salts. The salts were of the structures [Fc(OR)PS2]⁻[NH4]⁺, R: 3-methyl-1-butyl- for I; 1-phenyl-1-propyl- for II; 3-pentyl- for III...

Some 1,3-dithiadiphosphetane 2,4-disulfides (X 2 P 2 S 4 , X: Fc, FcLR; X: CH 3 O-C 6 H 4-, LR) were allowed to react with alcohols to obtain dithiophosphonic acids (X(OR)PS 2 H). These were converted to the corresponding ammonium salts. The salts were of the structures [Fc(OR)PS 2 ] − [NH 4 ] + , R: 3-methyl-1-butyl-for I; 1-phenyl-1-propyl-for II...

New cadmium complexes of 4-methoxyphenyl dithiophosphinic acids, H3CO-C6H 4-(R)PS2H were prepared. The five dithiophosphinato ligands (L) involved were of the general structure H3CO-C6H 4-(R)PS\(_{\mathrm {2}}^{\mathrm {-}}\) with R = 3-methylbutyl, (L1); n-butyl, (L2); 2-methylpropyl, (L3); 1-methylpropyl, (L4) and 2-propyl, (L5). To the best of o...

Benzyl(4-methoxyphenyl)dithiophosphinic acid (HL) was obtained as solid and was treated with the NiCl26H2O, CoCl26H2O, ZnCl2 and CdCl2 to prepare its Ni(II), Co(II), Zn(II) and Cd(II) complexes. The nickel complex was further treated with pyridine which led to the formation of octahedral dipyridine derivative. HL was obtained through the addition r...

The addition of trans-bis[4-methoxyphenyl(3-methylbutyl)dithiophosphinato]nickel(II) with pyridine (py) gave the {bispyridine-bis[4-methoxyphenyl(3-methylbutyl)dithiophosphinato]}nickel(II) [Ni(Py)2(L)2] complex. The structure of the complex has been characterized by X-ray diffraction. Ni(II)dithiophosphinato complex was reported 1 to be of squarep...

Potassium and tetraphenylphosphonium salts of novel aryldithiofluorophosphonic acids were synthesized. Lawesson's Reagent was allowed to react with KF in acetonitrile to yield the potassium salt of p-methoxyphenyldithiofluorophosphonic acid. Treatment of the latter with tetraphenylphosphonium chloride resulted in the formation of the tetraphenylpho...

The reaction of 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide (Lawesson's Reagent) with two different Grignard reagents gave the corresponding dithiophos-phinic acids (DTPA), CH3OC6H4-(R)P(S)SH; [R = iso-butyl (HL) and sec-butyl (HL)]. HL and HL were treated with dry ammonia to convert them to the ammonium salts, NH4L and NH4L....

In the centrosymmetric binuclear title complex, [Co2(C11H14NO2)4(C10H14N2O)2], the two CoII cations [Co...Co = 2.6199 (5) Å] are bridged by four 4-(diethylamino)benzoate (DEAB) anions. The four nearest O atoms around each CoII ion form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the...

In the centrosymmetric binuclear title complex, [Co2(C11H14NO2)4(C10H14N2O)2], the two CoII cations [Co⋯Co = 2.6199 (5) Å] are bridged by four 4-(diethyl­amino)­benzoate (DEAB) anions. The four nearest O atoms around each CoII ion form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the...

In the centrosymmetric title structure, [Zn(C9H10NO2)2(C6H6N2O)2(H2O)2]·2H2O, the ZnII cation, located on an inversion center, is coordinated by two 4-(methyl­amino)­benzoate anions, two nicotinamide ligands and two water mol­ecules in a slightly distorted octa­hedral geometry. The dihedral angle between the carboxyl­ate group and the attached benz...

In the dinuclear centrosymmetric CdII compound, [Cd2(C8H8NO2)4(C6H6N2O)2(H2O)2], the metal atom is chelated by two carboxyl­ate groups from 4-(methyl­amino)­benzoate (PMAB) anions, and coordinated by one nicotinamide and one water mol­ecule; a carboxyl­ate O atom from the adjacent PMAB anion bridges to the Cd atom, completing the irregular seven-co...

Thionation of 3-methylbutylmagnesium bromide with Lawesson’s Reagent (LR) gave 4-methoxyphenyl (3-methylbutyl)dithiophosphinic acid (DTPA), and the latter was converted to the ammonium salt (NH4L = Ammonium 4-methoxyphenyl (3-methylbutyl) dithiophosphinate). The complex, trans–bis[4-methoxyphenyl(3–methylbutyl) dithiophosphinato] nickel(II) [NiL2],...

In the dinuclear centrosymmetric CdII compound, [Cd2(C8H8NO2)4(C6H6N2O)2(H2O)2], the metal atom is chelated by two carboxylate groups from 4-(methylamino)benzoate (PMAB) anions, and coordinated by one nicotinamide and one water molecule; a carboxylate O atom from the adjacent PMAB anion bridges to the Cd atom, completing the irregular seven-coordin...

Single crystal molecule structure determine

For Abstract see ChemInform Abstract in Full Text.

Condensation of 4-aroyl-5-aryl-2,3-furandiones (1a,b) and ethyl 4,5-dioxo-2-phenyl-4,5-dihydrofuran-3-carboxylate (1c) with various 1,2-phenylenediamines (2d-f) gave 2(1H)-quinoxalinone derivatives, 1,3-diaryl-2-(3-oxo-3,4-dihydro-2-quinoxalinyl)-1,3-propanediones (3ae,af,bd,be,bf) and ethyl 3-aryl-3-oxo-2-(2-oxo-1,2-dihydro-2-quinoxalinyl)propanoa...

Single crystal molecular structure determine