Detail of "1129-30-2"

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CAS Number:
1129-30-2
Name:
2,6-Diacetylpyridine
Molecular Structure:
Formula:
C₉H₉NO₂
Molecular Weight:
163.17
Synonyms:
Pyridine-2,6-diacetyl;1-(6-Acetyl-pyridin-2-yl)-ethanone;1-(6-acetylpyridin-2-yl)ethanone;
EINECS:
214-442-9
Density:
1.119 g/cm³
Melting Point:
79-82 °C
Boiling Point:
287.2 °C at 760 mmHg
Flash Point:
131.9 °C
Appearance:
white to off-white crystalline needles or powder
Hazard Symbols:
Xi,F
Risk Codes:
36/37/38-15-10
Safety:
26-36-43-7/8 Details

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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.

Preparation of polyazapolycycloalkane chelants: Preparation of polyazapolycycloalkane chelants. Carvalho, Joan F.; Crofts, Shaun P.; Rocklage, Scott M.In this study， 111-40-0 and 1129-30-2 are also used. (Cockbain, Julian Roderick Michaelson, UK). PCT Int. Appl. WO 9110645 A2 25 Jul 1991, 76 pp. DESIGNATED STATES: W: AU, CA, FI, HU, JP, NO, SU, US; RW: AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE. (World Intellectual Property Organization). CODEN: PIXXD2. CLASS: IC: C07D047-18; C07D471-08; C07D213-36; A61K049-00. APPLICATION: WO 91-EP126 18 Jan 1991. PRIORITY: GB 90-1245 19 Jan 1990. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 1, 8 Title compds. R1(CR2R3)n[X(CR2R3)n]mR1 (X = O, S, HN, substituted heterocyclyl, etc.; R1 = H, halo, HO, (mono-, polyhydroxylated) C1-8 alkyl, -C1-8 alkoxy, both R1 = C-C bond, etc.; R2 = H, (mono-, polysubstituted) C1-8 alkyl, R2R2N = 5-7-membered satd. heterocyclyl, R3 = H, C1-8 alkyl or C1-8 alkoxy optionally mono- or polysubstituted by HO or C1-38 alkoxy; m = 3-8, n = 0-4) chelate complex or salt thereof, useful as a magnetic resonance imaging contrast, detoxication agent, x-ray, ultrasound, scintigraphic agent, and radiotherapy (no data), are prepd. To a stirred soln. of 2,6-diformylpyridine and CaCl2 in MeOH was added H2NCH2CH2NH2, the soln. refluxed for 3 h, stirred for 15 h at ambient temp. to give the Ca hexazatricylotetracosane deriv. to which in EtOH at ambient temp. was added NaBH4 to give the satd. analog. To this was added NaOH and BrCH2CO2H to give after work-up to give the tricyclotetracosane I. An aq. soln. of I and aq. soln. of GdCl3 were mixed and the pH adjusted to pH 6.9 with 1N NaOH to give Na gadolinium I. .

Detail of "1129-30-2"

2,6-Diacetylpyridine

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CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

CAS No.1129-30-2 2,6-Diacetylpyridine

Reference