2-sec-Butylphenol

Butyl oleate, 10 492 y-Butyloxycarbonyl-L-leucine anhydride, chiral derivatizing reagent, 6 76t Butylparaben, antimicrobial used in cosmetics, 7 831t terl-Butyl peroxyacetate, 13 484 terl-Butyl peroxybenzoate, 13 486 2-sec-Butylphenol (OSBP), 2 221-222 health and safety data, 2 220t physical properties of, 2 205t o-sec-Butylphenol. See 2-sec-Butylphenol (OSBP)... 

When two polymeric systems are mixed together in a solvent and are spin-coated onto a substrate, phase separation sometimes occurs, as described for the application of poly (2-methyl-1-pentene sulfone) as a dissolution inhibitor for a Novolak resin (4). There are two ways to improve the compatibility of polymer mixtures in addition to using a proper solvent modification of one or both components. The miscibility of poly(olefin sulfones) with Novolak resins is reported to be marginal. To improve miscibility, Fahrenholtz and Kwei prepared several alkyl-substituted phenol-formaldehyde Novolak resins (including 2-n-propylphenol, 2-r-butylphenol, 2-sec-butylphenol, and 2-phenylphenol). They discussed the compatibility in terms of increased specific interactions such as formation of hydrogen bonds between unlike polymers and decreased specific interactions by a bulky substituent, and also in terms of "polarity matches" (18). In these studies, 2-ethoxyethyl acetate was used as a solvent (4,18). Formation of charge transfer complexes between the Novolak resins and the poly (olefin sulfones) is also reported (6). 

Tanaka et al. [ 16] have described a spectrophotometric method for the determination of nitrate in vegetable products. This procedure is based on the quantitative reaction of nitrate and 2-sec-butylphenol in sulfuric acid (5 + 7), and the subsequent extraction and measurement of the yellow complex formed in alkaline medium. The column reaction is sensitive and stable and absorbances measured at 418 nm obey Beer s law for concentrations of nitrate-nitrogen between 0.13 and 2.5 xg/ml. In this procedure, the vegetable matter is digested at 80 °C with a sodium hydroxide silver sulfate solution, concentrated sulfuric acid and 2-sec-butylphenol are added, and after 15 minutes of standing time the nitrated phenol is extracted with toluene. Finally, the toluene layer is back-extracted with aqueous sodium hydroxide and evaluated spectrophotometrically at 418 nm. The standard deviation of the whole procedure was 1.4%, and analytical recoveries ranged between 91 and 98%. 

Other compounds prepared by this scheme include 2,6-dichloroaniline, 2-ohlorophenol, 2-sec-butylphenol, and 2-cyclohexylphenol. In the last two cases, the sulfonate group is not removed by steaming, but is displaced chemically by an entering nitro group in the preparation of herbicides. The dye intermediates 3-chloro-6-nitroaniline and 2,6-dinitroaniline are likewise prepared by using the sulfonic group to block the 4 position during nitration. 

Synonyms/Trade Names 2-sec-Butylphenol 2-(1-Methylpropyl)phenol... 

Figure 7 Determination of priority EDCs using GC-MS in scan mode. Temperature ramp conditions - 80°C min" ramp -8- 150°C (150 for 8 min) ramp - 11-280°C (280 for 5 min). Peak identification 1. phenol 2. ethylphenol 3. dichlorophenol 4. 4-propylphenol 5. 2-sec-butylphenol 6. 2,4,5-trichlorophenol 7. biphenyl 8. methylparaben 9. 2,3-tertbutyl-4-hydroxyanisole 10. 4-hexyloxyphenol 11. hexachlorobenzene 12. pentachloro-phenol 13. lindane 14. octylphenol 15. 4-heptyloxylphenol 16. octylphenol 2-polyethoxylate 17. nonylphenol 18. nonylphenol 2-polyethoxylate 19. bisphenol A 20. dieldrin 21. DES 22. estrone 23. 17/i-estradiol 24. ethynyl estradiol 25. NP 12 polyethoxylate. Unlabeled peaks due to column bleed.

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