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Cas Database

90-02-8

90-02-8

Identification

  • Product Name:Benzaldehyde,2-hydroxy-

  • CAS Number: 90-02-8

  • EINECS:201-961-0

  • Molecular Weight:122.123

  • Molecular Formula: C7H6O2

  • HS Code:29122990

  • Mol File:90-02-8.mol

Synonyms:Salicylaldehyde;Salicylaldehyde(8CI);2-Formylphenol;2-Hydroxybenzaldehyde;NSC 112278;NSC 49178;NSC 83559;NSC 83560;NSC 83561;NSC 83562;NSC 97202;Salicylal;Salicylic aldehyde;o-Formylphenol;o-Hydroxybenzaldehyde;

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Safety information and MSDS view more

  • Pictogram(s):HarmfulXn

  • Hazard Codes:Xn,N

  • Signal Word:Warning

  • Hazard Statement:H302 Harmful if swallowedH411 Toxic to aquatic life with long lasting effects

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. LIQUID: Irritating to skin and eyes. Harmful if swallowed. (USCG, 1999)

  • Fire-fighting measures: Suitable extinguishing media ALCOHOL FOAM, SPRAY, MIST, DRY CHEMICAL. Combustible. Can react with oxidizing materials. (USCG, 1999) Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

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  • Manufacture/Brand:Usbiological
  • Product Description:Salicylaldehyde
  • Packaging:1Kg
  • Price:$ 319
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  • Manufacture/Brand:TRC
  • Product Description:Salicylaldehyde
  • Packaging:100g
  • Price:$ 75
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Salicylaldehyde >98.0%(GC)
  • Packaging:500g
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Salicylaldehyde >98.0%(GC)(T)
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Salicylaldehyde >98.0%(GC)
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Salicylaldehyde >98.0%(GC)
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  • Manufacture/Brand:TCI Chemical
  • Product Description:Salicylaldehyde >98.0%(GC)(T)
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:Salicylaldehyde ≥98%, FG
  • Packaging:1 kg
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:Salicylaldehyde ≥98%, FG
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Relevant articles and documentsAll total 419 Articles be found

Acceleration Effect of Fe(II), Co(II), Ni(II) and Cu(II) on the Hydrolysis Rate of Ortho or Para-Hydroxy Schiff Bases

El-Taher

, p. 815 - 820 (1998)

The kinetics of hydrolysis of ortho- or para-hydroxybenzylidene-4-benzidine Schiff bases have been examined in the pH range 1.70-11.90, in aqueous media containing 20wt% dioxane, at 20°C. In basic media, pH > 8.47, a slight increase in the hydrolysis reaction rate of the Schiff bases is observed. In such basic media, the rate-controlling step is the attack of hydroxide ion on the ionized Schiff base. Below pH 6.82, the rate-determining step is ascribed to be the attack of water molecules on the protonated substrate. The effects of Fe(II), Co(II), Ni(II) and Cu(II) ions on the hydrolysis reaction rate of the Schiff bases have been studied and discussed on the basis of formation of a monocyclic chelate rings. The various thermodynamic parameters have also been evaluated and discussed.

Highly effective oxidation of benzyl alcohols to benzaldehydes over a new hypervalent iodine(III) reagent with the polymeric framework and magnetic feature as reusable heterogeneous nanocatalyst

Shahamat, Zahra,Nemati, Firouzeh,Elhampour, Ali

, (2020)

One easy, safe, and effective in situ method for preparing magnetic polyaniline nanocomposite containing hypervalent iodine(III) as a heterogeneous catalyst is presented in this paper. Our approach is based on two steps preparation, firstly synthesis of i

One-step construction of a novel AIE probe based on diaminomaleonitrile and its application in double-detection of hypochlorites and formaldehyde gas

Wen, Xiaoye,Yan, Li,Fan, Zhefeng

, p. 8155 - 8165 (2021)

As the environmental residues of formaldehyde and hypochlorites are very harmful to human health, a new simple and efficient aggregation-induced emission probe based on diaminomaleonitrile was designed and applied in the independent detection of hypochlorites and formaldehyde. The probe shows high selectivity and anti-interference ability against other potential competitive substances. ClO- promotes the oxidized splitting of CN in the probe, and induces evident color changes visible to the naked eye together with quenched fluorescence. The detection of ClO- by this probe was fast, sensitive, and visible to the naked eye. The detection limit of the probe to ClO- in the range of 0.70-20 μM is 18 nM. Through the condensation mechanism and with amine as the binding site of formaldehyde, the exposed amino group in the probe structure responds sensitively and efficiently to formaldehyde. The probe can effectively monitor 0.50-25 μM formaldehyde in aqueous solutions, with a detection limit as low as 42 nM. A portable solid sensor-a formaldehyde detection plate was built by directly covering the probe on a thin-layer chromatography plate. Thereby, formaldehyde gas can be effectively and sensitively detected, which offers a clue for developing solid-state formaldehyde-detection plates. The high experimental recovery rates prove that this new probe is highly promising in hypochlorite detection in the real water environment.

Tin-promoted Stereocontrolled Intramolecular Allylation of Carbonyl Compounds: a Facile and Stereoselective Method for Ring Construction

Zhou, Jing-Yao,Chen, Zhao-Gen,Wu, Shi-Hui

, p. 2783 - 2784 (1994)

The intramolecular allylation of carbonyl compounds 1 promoted by metallic tin proceeds in a stereocontrolled manner to give cyclic products 2 with high diastereoselectivity.

Spectroscopic studies of the interaction of aspirin and its important metabolite, salicylate ion, with DNA, A·T and G·C rich sequences

Bathaie,Nikfarjam,Rahmanpour,Moosavi-Movahedi

, p. 1077 - 1083 (2010)

Among different biological effects of acetylsalicylic acid (ASA), its anticancer property is controversial. Since ASA hydrolyzes rapidly to salicylic acid (SA), especially in the blood, interaction of both ASA and SA (as the small molecules) with ctDNA, oligo(dA·dT)15 and oligo(dG·dC)15, as a possible mechanism of their action, is investigated here. The results show that the rate of ASA hydrolysis in the absence and presence of ctDNA is similar. The spectrophotometric results indicate that both ASA and SA cooperatively bind to ctDNA. The binding constants (K) are (1.7 ± 0.7) × 103 M-1 and (6.7 ± 0.2) × 103 M-1 for ASA and SA, respectively. Both ligands quench the fluorescence emission of ethidium bromide (Et)-ctDNA complex. The Scatchard plots indicate the non-displacement based quenching (non-intercalative binding). The circular dichroism (CD) spectra of ASA- or SA-ctDsNA complexes show the minor distortion of ctDNA structure, with no characteristic peaks for intercalation of ligands. Tm of ctDNA is decreased up to 3 °C upon ASA binding. The CD results also indicate more distortions on oligo(dG·dC)15 structure due to the binding of both ASA and SA in comparison with oligo(dA·dT)15. All data indicate the more affinity for SA binding with DNA minor groove in comparison with ASA which has more hydrophobic character.

Hydrolysis of Imines. 4. Micellar Effects upon the Spontaneous Acid, Base, and Copper(II) Ion Induced Hydrolysis of N-Salicylidene-2-aminothiazole and N-Salicylidene-2-aminopyridine

Dash, Anadi C.,Dash, Bhasker,Panda, Debraj

, p. 2905 - 2910 (1985)

The rate of hydrolysis of the title imines in alkaline medium was strongly retarded by the cationic surfactant cetyltrimethylammonium bromide (CTAB) even though both reactants (i.e., the phenoxide forms of the imines and OH-) might be bound to the micellar pseudophase.Anionic surfactant sodium dodecyl sulfate (SDS) did not affect the hydrolysis rate at pH>12.In mild alkaline medium (pH 9.2) both surfactants retarded the hydrolysis reaction of the imines, the effect being much stronger in the case of CTAB.Inhibition was attributed to selective partitioning of the phenol form of the imines into the micellar pseudophase of SDS, while both the phenol and phenoxide forms of the imines were found to be adsorbed in the micellar pseudophase of CTAB, where these undergo hydrolysis much slower than in the aqueous pseudophase.In the range pH 5.08-7.06, small acceleration in the rate of hydrolysis of the thiazole imine by SDS was observed.There was virtually no kinetic effect of SDS on the copper(II)-induced hydrolysis of the thiazole imine.Strikingly the copper(II)-N-salicylidene-2-aminopyridine chelate (CuL+) was found to undergo faster acid-catalyzed hydrolysis of the aldimine linkage in the micellar pseudophase of SDS than in the aqueous phase.

The antineoplastic action of o-substituted [1,2-bis(4-hydroxyphenyl)-ethylenediamine]dichloroplatinum (II) complexes and their methylethers

Karl,Schoenenberger

, p. 405 - 410 (1988)

-

Fluorimetric Detection of Phosphates in Water Using a Disassembly Approach: A Comparison of FeIII-, ZnII-, MnII- and MnIII-salen Complexes

Winkler, Daniela,Banke, Sophie,Kurz, Philipp

, p. 933 - 939 (2020)

Details of the reaction sequence used for the fluorimetric detection of phosphates by disassembly of transition metal Schiff base complexes were investigated for [FeIII(salen)(H2O)]+, [ZnII(salen)], [MnII(salen)(H2O)2], and [MnIII(salen)(H2O)]+. The reactivity of these compounds towards phosphorus oxoanions of differing charge, number of donor atoms and steric hindrance was detected by UV/Vis and fluorescence spectroscopy in both aprotic organic and aqueous media. Selectivity of [FeIII(salen)(H2O)]+ towards pyrophosphate over all other tested phosphorus-containing analytes was strongly supported. [ZnII(salen)] showed a faster reactivity but was much less selective. In contrast, [MnIII(salen)(H2O)]+ proved to be more stable than the iron complex but generally showed little reactivity towards phosphorus oxoanions. The influence of the charge of the central atom was investigated using the MnII analogue [MnII(salen)(H2O)2]. As expected, the reduced charge resulted in a reactivity comparable to the ZnII complex in organic solution but lead to hydrolysis of the complex in water. Finally, the reaction products of [FeIII(salen)(H2O)]+ with phosphates were characterized by IR spectroscopy and mass spectrometry, providing further insights into the reaction mechanism of the disassembly process.

A DFT and experimental study of the spectroscopic and hydrolytic degradation behaviour of some benzylideneanilines

Nelson, Peter N.,Robertson, Tahjna I.

, (2021/10/12)

The spectroscopic and hydrolytic degradation behaviour of some N-benzylideneanilines are investigated experimentally and theoretically via high quality density function theoretical (DFT) modelling techniques. Their absorption and vibrational spectra, accurately predicted by DFT calculations, are highly dependent on the nature of the substituents on the aromatic rings, hence, though some of their spectroscopic features are similar, energetic differences exist due to differences in their electronic structures. Whereas the o-hydroxy aniline derived adducts undergo hydrolysis via two pathways, the most energetically economical of which is initiated by a fast enthalpy driven hydration, over a conservative free energy (ΔG?) barrier of 53 kJ mol?1, prior to the rate limiting entropy controlled lysis step which occurs via a conservative barrier of ca.132 kJ mol?1, all other compounds hydrolyse via a slower two-step pathway, limited by the hydration step. Barriers heights for both pathways are controlled primarily by the structure and hence, stability of the transition states, all of which are cyclic for both pathways.

Rapid, chemoselective and mild oxidation protocol for alcohols and ethers with recyclable N-chloro-N-(phenylsulfonyl)benzenesulfonamide

Badani, Purav,Chaturbhuj, Ganesh,Ganwir, Prerna,Misal, Balu,Palav, Amey

supporting information, (2021/06/03)

Chlorine is the 20th most abundant element on the earth compared to bromine, iodine, and fluorine, a sulfonimide reagent, N-chloro-N-(phenylsulfonyl)benzenesulfonamide (NCBSI) was identified as a mild and selective oxidant. Without activation, the reagent was proved to oxidize primary and secondary alcohols as well as their symmetrical and mixed ethers to corresponding aldehydes and ketones. With recoverable PS-TEMPO catalyst, selective oxidation over chlorination of primary and secondary alcohols and their ethers with electron-donating substituents was achieved. The reagent precursor of NCBSI was recovered quantitatively and can be reused for synthesizing NCBSI.

Magneto-structural properties and reliability of (Mn/Ni/Zn) substituted cobalt-copper ferrite heterogeneous catalyst for selective and efficient oxidation of aryl alcohols

Dhabbe, Rohant,Gaikwad, Pratapsingh,Kakade, Bhalchandra,Kamble, Prakash,Kurane, Rajnikant,Parase, Haridas,Sabale, Sandip

, (2021/09/28)

Herein, M2+ substituted CoCuFe2O4 (M2+ = Mn, Zn, Ni) ferrites have been synthesized using the sol-gel auto combustion method. The structural, morphological and magnetic studies confirm the phase formation of pure magnetic cubic spinel MCoCuFe2O4 (M2+ = Mn, Zn, Ni) ferrites. The substitution with Mn, Ni and Zn does not show large variation in binding energies obtained from XPS of Cu (2p) that specifies identical copper concentration (Cu0.5) and substitution of only cobalt (Co2+) in Mn-F, Ni-F and Zn-F catalysts. Interestingly, MCoCuFe2O4 magnetic catalysts were explored for selective oxidation of a series of substituted benzyl alcohols. Catalyst Mn-F showed 93% conversion of benzyl alcohol while, Ni-F showed 95% conversion of 4-nitrobenzyl alcohol. Whereas, the catalyst Zn-F was showed 96% conversion for 4-methoxybenzyl alcohol. Additionally the results also indicate an efficient separation and recovery of the magnetic catalysts after four successive reuses without any considerable loss in its catalytic activity.

A Synergistic Magnetically Retrievable Inorganic-Organic Hybrid Metal Oxide Catalyst for Scalable Selective Oxidation of Alcohols to Aldehydes and Ketones

Mittal, Rupali,Awasthi, Satish Kumar

, p. 4799 - 4813 (2021/09/30)

Herein, we report a synergistic silica coated magnetic Fe3O4 catalyst functionalized with nitrogen rich organic moieties and immobilized with cobalt metal ion (FNP-5) for selective oxidation of alcohols to aldehydes and ketones using tert-butyl hydroperoxide (TBHP) as oxidant. The catalyst was rigorously characterized via several techniques which delineate its core-shell structure, magnetic behavior, phase and crystal structure. The Co(III) acts as the active catalytic center for selective oxidation reaction. The control reactions revealed radical mechanistic pathway assisted by the synergism induced by the inorganic-organic hybrid nature of FNP-5. The other features of current protocol involve neat reaction conditions, high TOF values, scalability of product and low E-factor value (1.92). Moreover, FNP-5 could be effortlessly separated via an external magnet, displays recyclability over eight catalytic cycles and exhibits structural integrity even after rigorous use. Overall, these results manifest the understanding of synergistic architectures as sustainable surrogates for selective oxidation reactions.

Cu-Mn Bimetallic Complex Immobilized on Magnetic NPs as an Efficient Catalyst for Domino One-Pot Preparation of Benzimidazole and Biginelli Reactions from Alcohols

Nasseri, Mohammad Ali,Rezazadeh, Zinat,Kazemnejadi, Milad,Allahresani, Ali

, p. 1049 - 1067 (2020/09/11)

An efficient magnetically recyclable bimetallic catalyst by anchoring copper and manganese complexes on the Fe3O4 NPs was prepared and named as Fe3O4@Cu-Mn. It was founded as a powerful catalyst for the domino one-pot oxidative benzimidazole and Biginelli reactions from benzyl alcohols as a green protocol in the presence of air, under solvent-free and mild conditions. Fe3O4@Cu-Mn NPs were well characterized by FT-IR, XRD, FE-SEM, TEM, VSM, TGA, EDX, DLS, and ICP analyses. The optimum range of parameters such as time, temperature, amount of catalyst, and solvent were investigated for the domino one-pot benzimidazole and Biginelli reactions to find the optimum reaction conditions. The catalyst was compatible with a variety of benzyl alcohols, which provides favorable products with good to high yields for all of derivatives. Hot filtration and Hg poisoning tests from the nanocatalyst revealed the stability, low metal leaching and heterogeneous nature of the catalyst. To prove the synergistic and cooperative effect of the catalytic system, the various homologues of the catalyst were prepared and then applied to a model reaction separately. Finally, the catalyst could be filtered from the reaction mixture simply, and reused for five consecutive cycles with a minimum loss in catalytic activity and performance. Graphic Abstract: A new magnetically recyclable Cu/Mn bimetallic catalyst has been developed for domino one-pot oxidation-condensation of benzimidazole and Biginelli reactions from alcohols. [Figure not available: see fulltext.]

Process route upstream and downstream products

Process route

2-methoxybenzaldehyde O-methyloxime
107369-63-1

2-methoxybenzaldehyde O-methyloxime

salicylonitrile
611-20-1

salicylonitrile

2-methoxy-benzonitrile
6609-56-9

2-methoxy-benzonitrile

salicylaldehyde
90-02-8

salicylaldehyde

Conditions
Conditions Yield
at 650 ℃; under 0.03 Torr;
46%
24%
5%
2-ethoxybenzaldehyde O-methyloxime
403705-98-6

2-ethoxybenzaldehyde O-methyloxime

salicylonitrile
611-20-1

salicylonitrile

2-ethoxybenzonitrile
6609-57-0

2-ethoxybenzonitrile

salicylaldehyde
90-02-8

salicylaldehyde

Conditions
Conditions Yield
at 650 ℃; under 0.03 Torr;
45%
15%
10%
2-isopropoxybenzaldehyde O-methyloxime
403705-99-7

2-isopropoxybenzaldehyde O-methyloxime

salicylonitrile
611-20-1

salicylonitrile

2-isopropoxybenzonitrile
90921-35-0

2-isopropoxybenzonitrile

salicylaldehyde
90-02-8

salicylaldehyde

2,2-dimethyl-2H-1,3-benzoxazine

2,2-dimethyl-2H-1,3-benzoxazine

Conditions
Conditions Yield
at 650 ℃; under 0.03 Torr;
34%
3%
10%
34%
Conditions
Conditions Yield
toluene; With SiO2 doped TiO2; for 2h; Darkness;
UV-irradiation;
2-hydroxybenzaldehyde O-benzyloxime
86628-55-9,42001-07-0

2-hydroxybenzaldehyde O-benzyloxime

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

benzyl alcohol
100-51-6,185532-71-2

benzyl alcohol

Conditions
Conditions Yield
In water; acetonitrile; Irradiation;
30%
30%
20%
20%
pyCo(N,N'-bis(salicylidene)-o-phenylenediamino)NO<sub>2</sub>

pyCo(N,N'-bis(salicylidene)-o-phenylenediamino)NO2

boron trifluoride diethyl etherate
109-63-7

boron trifluoride diethyl etherate

pyCo(N,N'-bis(salicylidene)-o-phenylenediamino)NO*BF<sub>3</sub>

pyCo(N,N'-bis(salicylidene)-o-phenylenediamino)NO*BF3

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

Conditions
Conditions Yield
With benzyl alcohol; In 1,2-dichloro-ethane; byproducts: BF3-pyridine complex, H2O; under Ar addn. of BF3*Et2O to mixt. of alcohol and complex in (CH2)2Cl2, further addn. of BF3*Et2O, heating in 60°C oil bath for 30 min,addn. 1 drop of pyridine in hexane, removing BF3-pyridine complex pptd.; solvent removing in vac., addn. of petroleum ether to resulting oil, filtration, drying under Ar;
52%
39%
1-phenyl-2-nitroprop-1-ene
705-60-2,18315-84-9,58321-79-2

1-phenyl-2-nitroprop-1-ene

acetyl chloride
75-36-5

acetyl chloride

benzylidene dichloride
98-87-3

benzylidene dichloride

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

acetoximino-2 chloro-1 phenyl-1 propane
81932-05-0

acetoximino-2 chloro-1 phenyl-1 propane

Conditions
Conditions Yield
With aluminium trichloride; In carbon disulfide; at 0 ℃; for 5h;
31%
7%
2.5%
12.5%
N<SUP>1</SUP>-benzylidene-N<SUP>2</SUP>,N<SUP>2</SUP>-dimethylethane-1,2-diamine
23956-51-6

N1-benzylidene-N2,N2-dimethylethane-1,2-diamine

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

Conditions
Conditions Yield
N1-benzylidene-N2,N2-dimethylethane-1,2-diamine; With tetrakis(acetonitrile)copper(I) trifluoromethanesulfonate; oxygen; In acetone; Glovebox;
With hydrogenchloride; In water; acetone; at 70 ℃; for 0.5h; Glovebox;
N'-(benzylideneamino)-N,N-diethylethan-1-amine
1749-16-2

N'-(benzylideneamino)-N,N-diethylethan-1-amine

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

Conditions
Conditions Yield
N'-(benzylideneamino)-N,N-diethylethan-1-amine; With tetrakis(acetonitrile)copper(I) trifluoromethanesulfonate; oxygen; In acetone; at 20 ℃; for 1h; Glovebox;
With hydrogenchloride; In water; acetone; at 20 ℃; for 1h; Glovebox; Reflux;
1-phenyl-2-nitroprop-1-ene
705-60-2,18315-84-9,58321-79-2

1-phenyl-2-nitroprop-1-ene

benzylidene dichloride
98-87-3

benzylidene dichloride

benzaldehyde
100-52-7

benzaldehyde

salicylaldehyde
90-02-8

salicylaldehyde

acetoximino-2 chloro-1 phenyl-1 propane
81932-05-0

acetoximino-2 chloro-1 phenyl-1 propane

Conditions
Conditions Yield
With aluminium trichloride; chlorure d'acetyle; In dichloromethane; at 0 ℃; for 5h;
7.5%
7.5%
11%
48%
With aluminium trichloride; chlorure d'acetyle; In dichloromethane; at 0 ℃; for 5h; Product distribution; Mechanism; other solvents, reaction times, amounts of reagents;
48%
7.5%
7.5%
11%
With aluminium trichloride; chlorure d'acetyle; In dichloromethane; at 0 ℃; for 0.25h;
44%
4%
5.5%
12%

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