Detail of "14548-46-0"

Reference

Flavoring agent

Flavoring agent. Winter, Max; Gautschi, Fritz; Flament, Ivon; Stoll, Max (Firmenich S. A., Switz.). U.S. US 4018910 19 Apr 1977, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: A23L001-234. NCL: 426537000. APPLICATION: US 65-452342 30 Apr 1965. DOCUMENT TYPE: Patent CA Section: 17 (Foods) Section cross-reference(s): 27 The flavor of coffee may be modified by the addn. of a small amt. of a pyridine compd. contg. a carbonyl group. The flavor characteristics of 2-acetylpyridine [1122-62-9], 3-acetylpyridine [350-03-8], 4-acetylpyridine [1122-54-9], 6-methyl-2-acetylpyridine [6940-57-4], pyridine-2-aldehyde [1121-60-4], pyridine-3-aldehyde [500-22-1], pyridine-4-aldehyde [872-85-5], 6-methylpyridine-2-aldehyde [1122-72-1], 2-benzoylpyridine [91-02-1], 3-benzoylpyridine [5424-19-1], 4-benzoylpyridine [14548-46-0], 2,6-diacetylpyridine [1129-30-2], and 4-(.gamma.-pyridyl)butan-2-one (I) [35250-71-6] are tabulated. I was prepd. by holding 2 mL 2N NaOH, 10.8 g pyridine-4-aldehyde, 100 mL H2O, and 10 mL Me2CO at 12-15.degree. for 3 min, neutralizing with 10% HOAc, satg. with NaCl, and extg. with Et2O. The Et2O was distd. to give 8.4 g 4-(.gamma.-pyridyl)-3-buten-2-one [10416-53-2], yellow oil b0.07 135-8.degree.. Soln. of the oil in 30 mL EtOH, hydrogenation over Ni catalyst, and distn. of the product gave I, b0.05 83-5, n427 1.047, nD27 1.516.

Evaluation of the effect of additives on electroless copper coating

Evaluation of the effect of additives on electroless copper coating. Communication II. Discussion of experimental data. Kuznetsov, V. N.; Golovchanskaya, R. G.; Morozova, N. A.; Khas'kina, L. Yu. (Mosk. Khim.-Tekhnol. Inst., Moscow, USSR). Deposited Doc., VINITI 5097-83, 24 pp. Avail. VINITI (Russian) 1983. DOCUMENT TYPE: Report CA Section: 56 (Nonferrous Metals and Alloys) Electroless Cu coatings typically 25 m-thick were deposited at 25 or 50° from the bath contg. CuSO4.5H2O 20, Trilon B [64-02-8] 55 g/L, 37% HCHO 10 mL/L, and NaOH for pH control. Kinetics of deposition were evaluated. Bath addns. for improved quality of Cu coatings after 120 min included L-rhamnose [3615-41-6], 4-benzoylpyridine [14548-46-0], alanine [56-41-7], H2SO3, pyridine-2,6-dicarboxylic acid [499-83-2], K3Fe(CN)6, and/or NaCN, typically at ￡50 mg/L bath. The service life of the bath was increased to >3 h.