Structure of 3171-45-7
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.
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Richter-Addo, George B ; Kapfunde, Tsitsi Adelaide ; Londono-Salazar, Jennifer ; Navamoney, Arulsamy ; Yamamoto, Nobuyuki ; Shaw, Michael J
Abstract: Ten new ruthenium compounds based on the N,N,N,N-chelate Me2bpbMe2 (bpb = 1,2-bis(pyridine-2-carboximido)benzene) have prepared and characterized by 1H NMR and IR spectroscopy. The monocarbonyl compound (Me2bpbMe2)Ru(CO)(H2O) compound was generated from the reaction of the free base Me2bpbMe2H2 with Ru3(CO)12 in refluxing DMF. Isoamyl nitrite reacts with this compound to yield the trans-addition nitrosyl alkoxide (Me2bpbMe2)Ru(NO)(O-i-C5H11). Nitrosothiols similarly add in a formal trans-addition manner to yield (Me2bpbMe2)Ru(NO)(SR/Ar) (SR/Ar = S-i-C5H11, SPh, SC6F4H, SC(Me)2CHNHC(O)Me) derivatives. The (Me2bpbMe2)Ru(NO)(O-i-C5H11) compound undergoes alkoxide exchange reactions with PhOH and HOC6F4H to generate (Me2bpbMe2)Ru(NO)(OPh) and (Me2bpbMe2)Ru(NO)(OC6F4H), respectively. The neutral alkoxide/aryloxide nitrosyl compounds exhibit higher νNO bands (1809-1842 cm-1) relative to their thiolate analogues (1755-1823 cm-1). The X-ray crystal structures of (Me2bpbMe2)Ru(NO)(OPh), (Me2bpbMe2)Ru(NO)(OC6F4H), and (Me2bpbMe2)Ru(NO)(SPh), have been determined, and reveal linear axial (O)N–Ru–O/S linkages consistent with trans positioning of the NO and aryloxide and -thiolate groups, and near-linear Ru–N–O moieties (164–174°) consistent with these complexes being formulated as {RuNO}6 species. The electrooxidation behavior of (Me2bpbMe2)Ru(NO)(OC6F4H), (Me2bpbMe2)Ru(NO)(SC6F4H), and (Me2bpbMe2)Ru(NO)(SPh) were examined by cyclic voltammetry and IR spectroelectrochemistry in CH2Cl2. (Me2bpbMe2)Ru(NO)(OC6F4H) and (Me2bpbMe2)Ru(NO)(SC6F4H) display reversible first oxidations, whereas (Me2bpbMe2)Ru(NO)(SPh) displays an irreversible first oxidation with likely loss of the thiolate ligand. Chemical reactivity of (Me2bpbMe2)Ru(NO)(SPh) with H+ and Me+ results in the generation of the free thiol PhSH and thioether PhSMe, respectively.
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Reduction of CO to Methanol with Recyclable Organic Hydrides
Andressa V. Müller ; Shahbaz Ahmad ; Jake T. Sirlin ; Mehmed Z. Ertem ; Dmitry E. Polyansky ; David C. Grills , et al.
Abstract: The reaction steps for the selective conversion of a transition metal carbonyl complex to a hydroxymethyl complex that releases methanol upon irradiation with visible light have been successfully quantified in acetonitrile solution with dihydrobenzimidazole organic hydride reductants. Dihydrobenzimidazole reductants have been shown to be inactive toward H2 generation in the presence of a wide range of proton sources and have been regenerated electrochemically or photochemically. Specifically, the reaction of cis-[Ru(bpy)2(CO)2]2+ (bpy = 2,2′-bipyridine) with one equivalent of a dihydrobenzimidazole quantitatively yields a formyl complex, cis-[Ru(bpy)2(CO)(CHO)]+, and the corresponding benzimidazolium on a seconds time scale. Kinetic experiments revealed a first-order dependence on the benzimidazole hydride concentration and an unusually large kinetic isotope effect, inconsistent with direct hydride transfer and more likely to occur by an electron transfer-proton-coupled electron transfer (EΤ−PCET) or related mechanism. Further reduction/protonation of cis-[Ru(bpy)2(CO)(CHO)]+ with two equivalents of the organic hydride yields the hydroxymethyl complex cis-[Ru(bpy)2(CO)(CH2OH)]+. Visible light excitation of cis-[Ru(bpy)2(CO)(CH2OH)]+ in the presence of excess organic hydride was shown to yield free methanol. Identification and quantification of methanol as the sole CO reduction product was confirmed by 1H NMR spectroscopy and gas chromatography. The high selectivity and mild reaction conditions suggest a viable approach for methanol production from CO, and from CO2 through cascade catalysis, with renewable organic hydrides that bear similarities to Nature’s NADPH/NADP+.
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| CAS No. : | 3171-45-7 |
| Formula : | C8H12N2 |
| M.W : | 136.19 |
| SMILES Code : | CC1=CC(N)=C(N)C=C1C |
| MDL No. : | MFCD00007729 |
| InChI Key : | XSZYBMMYQCYIPC-UHFFFAOYSA-N |
| Pubchem ID : | 76635 |
| GHS Pictogram: |
|
| Signal Word: | Warning |
| Hazard Statements: | H315-H319-H335 |
| Precautionary Statements: | P261-P305+P351+P338 |
| Num. heavy atoms | 10 |
| Num. arom. heavy atoms | 6 |
| Fraction Csp3 | 0.25 |
| Num. rotatable bonds | 0 |
| Num. H-bond acceptors | 0.0 |
| Num. H-bond donors | 2.0 |
| Molar Refractivity | 45.18 |
| TPSA ? Topological Polar Surface Area: Calculated from |
52.04 Ų |
| Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.21 |
| Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.29 |
| Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.48 |
| Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.48 |
| Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.31 |
| Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.35 |
| Log S (ESOL):? ESOL: Topological method implemented from |
-1.94 |
| Solubility | 1.56 mg/ml ; 0.0115 mol/l |
| Class? Solubility class: Log S scale |
Very soluble |
| Log S (Ali)? Ali: Topological method implemented from |
-1.98 |
| Solubility | 1.42 mg/ml ; 0.0104 mol/l |
| Class? Solubility class: Log S scale |
Very soluble |
| Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.42 |
| Solubility | 0.514 mg/ml ; 0.00378 mol/l |
| Class? Solubility class: Log S scale |
Soluble |
| GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
| BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
| P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
| CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
Yes |
| CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
| CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
| CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
| CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
Yes |
| Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-6.21 cm/s |
| Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
| Ghose? Ghose filter: implemented from |
None |
| Veber? Veber (GSK) filter: implemented from |
0.0 |
| Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
| Muegge? Muegge (Bayer) filter: implemented from |
1.0 |
| Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
| PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
| Brenk? Structural Alert: implemented from |
1.0 alert: heavy_metal |
| Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
| Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.0 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

| Yield | Reaction Conditions | Operation in experiment |
|---|---|---|
| 1.300 g (96%) | palladium-carbon; In ethanol; | 1,2-Diamino-4,6-dimethylbenzene. A mixture of 4,6-dimethyl-2-nitroaniline (1.66 g, 10.0 mmole) and 10% Pd/C (200 mg) in ethanol (35 mL) was hydrogenated for 2 h at room temperature under 25 psi H2. The catalyst was removed by filtration with celite and the solvent was removed by rota-evaporation to give 1.300 g (96%) of 1,2-diamino-4,5-dimethylbenzene as a brown solid. 1 H NMR (CDCl3): 6.449 (s, 1H), 6.469 (s, 1H), 3.327 (br, 2H), 3.259 (br, 2H), 2.190 (s, 3H), 2.159 (s, 3H). |
[ 5424-47-5 ]
[ 3171-45-7 ]
[ 3171-45-7 ]
[ 90176-80-0 ]
| Yield | Reaction Conditions | Operation in experiment |
|---|---|---|
| 90% | In ethanol; at 80℃; for 1h; | General procedure: ZrO2-Al2O3 solid acid catalytic material was added to the stirred solution of O-phenylenediamines and different substituted aromatic aldehydes in a suitable solvent, and the resulting mixture was heated at a particular temperature and monitored by TLC. After the completion of the reaction, the reaction mixture was cooled and filtered and the residue was washed with ethanol to recover the solid acid catalyst. Filtrate was evaporated in vacuum to get the crude reaction product, which was then purified by silica-gel column chromatography using a suitable mobile phase to separate the desired product. The reaction products were characterized by melting point, 1H NMR and 13C NMR spectroscopy (Bruker, 400 MHz), LC-MS (Varian), and HPLC (Waters) techniques |
| Yield | Reaction Conditions | Operation in experiment |
|---|---|---|
| 67% | With ammonium bromide; In dimethyl sulfoxide; at 20℃; for 24h; | General procedure: A solution of o-diaminobenzene 2 (1 mmol) in anhydrousDMSO (2 ml) was slowly added to a solution of the correspondingaldehyde 1 (1 mmol) in DMSO (2 ml). Then, NH4Br (39 mg, 0.4 mmol)was added and the resulting mixture was stirred in the contact with dryair at room temperature for 24 h |
[ 41042-12-0 ]
[ 504-02-9 ]
[ 3171-45-7 ]
[ 667463-64-1 ]
[ 3171-45-7 ]
| Yield | Reaction Conditions | Operation in experiment |
|---|---|---|
| With tert.-butylhydroperoxide; In dimethyl sulfoxide; at 90℃; for 0.5h; | N-methyl indole (0.5 mmol), DMSO (5 ml) were added into reaction tube and stirred at 90 C. Then the I2 (0.6 mmol) and TBHP (2.5 mmol) were added into the reaction tube. After 24 h the o-benzenediamine (0.34 mmol) was added into the mixture. The reaction was stopped until the o-benzenediamine was completely consumed as monitored by TLC analysis. After the completion of reaction, 5% Na2S2O3 solution (30 mL) was added to the mixture. The mixture was extracted with EtOAc (3 * 20 ml) and the organic layer was dried by Na2SO4. Then the crude product was purified by silica gel chromatography (petroleum ether/ethyl acetate/dichloromethane 3/1/1). |

A151591 [118727-34-7]
1,3,5-Tris(4-aminophenyl)benzene
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A151591 [118727-34-7]
1,3,5-Tris(4-aminophenyl)benzene
Similarity: 0.86