Benzaldehyde, 4-ethoxy-3-methoxy

Benzaldehyde, 4-ethoxy-3-methoxy-, 44 Benzaldehyde, 4-ethoxy-3-methoxy-,... 

Benzaldehyde, 4-ethoxy-3-methoxy-, 56, 44 Benzaldehyde, 4-ethoxy-3-methoxy-, ethylene acetal, 56, 44 Benzaldehyde, 4-isopropyl-, 55,10 Benz[e ] anthracene, 58, 15, 16 BENZENAMINE, 4-bromo-Ar, V-dimcthyl-3-(tnfluoromethyl)-, 55, 20 Benzene, bromo-, 55,51 Benzene, 1 bromo-4-chloro-,55, 51 Benzene, 4-bromo-l, 2-dimethyl, 55, 51 Benzene, l-bromo-4-fluoro-, 55, 51 Benzene, 1 -bromo-4-methoxy-, 55,51 Benzene, l-bromo-3-methyl-, 55, 51 Benzene, 4-(cr/-buty 1-1-ethyl, 55, 10 Benzene, chemical hazard warning, 58, 168 Benzene, chloro-,56, 86 Benzene, l-ethyl-4-isopropyl-, 55, 10... 

Benzaldehyde,4-(l,l-dimethylethyl)-, 55, 10 BENZALDEHYDE, 4-ETHOXY-3-HY-DROXY-[2539-53-9], 56, 44 Benzaldehyde, 4-ethoxy-3-methoxy-[120-25-2], 56,44... 

M ethoxy-benzaldehyd 2-Methoxy-benzoesaure 4-Nitro-1 -m ethoxy-benzol... 

The presence of electron-donating substituents in the diene enables it to react with simple aldehydes thus both acetaldehyde and benzaldehyde add to 1-methoxy-1,3-butadiene at 50-65 °C under high pressure (20 Kbar) to give dihydropyrans as 70 30 mixtures of cis- and frans-isomers (equation 5)4. The combination of electron-rich diene/electron-poor dienophile makes it possible to perform the reaction under milder conditions. 2-Alkyl-l-ethoxy-1,3-butadienes and diethyl mesoxalate afford dihydropyrans almost quantitatively (equation 6)5. 

One Tweetio related to 2C-T-7 has been made and evaluated. This is the 2-EtO-homologue of 2C-T-7, 2-ethoxy-5-methoxy-4-(n)-propylthiophenethyl-amine, or 2CT7-2ETO. The benzaldehyde (2-ethoxy-5-methoxy-4-(n-propyl-thio)benzaldehyde had a melting point of 69-71 °C, the nitrostyrene intermediate a melting point of 106-106.5 °C, and the final hydrochloride a melting point of 187-189 C°. At the 20 milligram level, the effects were felt quickly, and the eyes-closed visuals were modest but real. It was very short-lived, with baseline recovery at about the fifth hour. The next day there was an uncomfortable headache which seemed on an intuitive level to be an after-effect of the compound. 

SYNTHESIS A solution was made of 166 g ethylvanillin (4-ethoxy-3-methoxy-benzaldehyde) in 600 mL glacial acetic acid and arranged so that it can be stirred continuously, magnetically, and cooled as needed with an external ice bath. There was then added a total of 218 g of 40% peracetic acid in acetic acid, at a rate that permitted the temperature to stay at 25 °C with the continuous application of the ice bath. The temperature should not drop below 23 °C (the reaction stops) but it absolutely cannot be allowed to exceed 29 °C (the reaction can no longer be... 

Reactions suitable for the kinetics aiming at the purpose mentioned above needs to satisfy one condition. The TST must be valid for a fairly wide range of pressure and temperature. Furthermore it is desirable that the reactant can be generated in situ and the reaction can be followed spectroscopically to obtain reliable rate constants. As the first set of reactions, thermal ZfE isomerization of three N-benzylideneanilines (benzaldehyde anUs), i.e. N-[4-(dimethylamino) benzylidene]-4-nitroaniline (DBNA), N-[4-(dimethylamino)benzylidene]-4-ethoxy-carbonylaniline (DBEA), and N-[4-(dimethylamino)benzylidene]-4-bromoaniline (DBBA), and two push-pull substituted azobenzenes, i.e. 4-(dimethylamino)-4 -nitroazobenzene (DNAB) and 4 -(dimethylamino)-2-methoxy-4-nitroazobenzene (DMNAB) as shown in Scheme 3.2 were selected. 

Benzaldehyde condenses at ordinary temperatures with phenoxy-dichlorophospliine, and methoxy - and ethoxy-dichlorophosphmes in the presence of acetic acid, forming respectively phenyl, methyl and ethyl esters of a-hydroxybenzylphosphinic acid ... 

Eventual irreversible oxidation of both the picket-fence and the capped porphyrins occurs because steric encumbrance is present only on one side of the molecule. To avoid this, octa-orf/io-substituted TPP complexes have been prepared. By choosing the correct steric bulk for the ortho substituents a protected pocket may be formed on both sides of the porphyrin ring. The pockets could still be penetrated by axial bases and diatomic molecules but would form a barrier to the close approach of two metal centres, thus stabilizing the oxygenated porphyrin. Amundsen and Vaska have prepared the hemes Fe (P) (where (P ) is the dianion of tetrakis[2,4,6-tris(methoxy)phenyl]porphyrin or tetrakis[2,4,6-tris(ethoxy)phenyl]porphyrin) by condensation of the appropriate trisub-stituted benzaldehyde with pyrrole Balch has shown by H-NMR that although the... 

This crude product, 5.9 g of yellow solid, was distilled 115-125 °C at 0.3 mm/Hg to give 4.9 g of 4-ethoxy-3-methoxy-5-(methylthio)benzaldehyde as a pale yellow solid that had a mp of 43-45 °C. Recrystallization from MeOH gave a mp of 47-48 °C. Anal. (Cl 1H1403S) C,H. This product can also be prepared from the anion of 3-thiosyringaldehyde (mp 141-143 °C as crystals from MeOH) by reaction with ethyl iodide in the presence of phase-transfer catalyst, but the yield is quite poor. 

To a solution of 4.4 g 4-ethoxy-5-methoxy-3-(methylthio)benzaldehyde in 75 mL nitromethane, there was added 0.5 g anhydrous ammonium acetate and the mixture was heated on the steam bath for 80 min. Care must be taken in the length of time, and there must be frequent TLC montoring, as there is a rapid scrudge buildup (see under 3-TSB for a discussion of scrudge). The reaction mixture was stripped of nitromethane under vacuum, and the residual deep-yellow oil was dissolved in 20 mL of boiling MeOH. This was decanted from a small amount of... 

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