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W503908

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Qing-He Zhang et al.
Journal of chemical ecology, 35(5), 610-617 (2009-05-02)
Volatiles from hindgut extracts of males of the Qinghai spruce bark beetle, Ips nitidus, from different attack phases (phase 1: unpaired males and phases 2-4: males joined with one to three females) and hindgut extracts of mated females were analyzed...
G J Mannering et al.
Xenobiotica; the fate of foreign compounds in biological systems, 26(5), 487-493 (1996-05-01)
1. Colupulone, a constituent of hops, was shown to be a potent inducer of hepatic P4503A in mouse. The olefin, 2-methyl-3-buten-2-ol (RC = CH2), is formed from lupulones when hops are exposed to atmospheric hydroxyl radicals. This suggested the possibility...
D McGinty et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 48 Suppl 3, S97-100 (2010-02-10)
A toxicologic and dermatologic review of 2-methyl-3-buten-2-ol when used as a fragrance ingredient is presented.
Fabienne Reisen et al.
Environmental science & technology, 37(20), 4664-4671 (2003-11-05)
Hydroxyaldehyde products of the OH radical-initiated reactions (in the presence of NO) of two volatile vegetative emissions, Z-3-hexen-1-ol and 2-methyl-3-buten-2-ol, were examined to assess the qualitative and quantitative potential of two analysis techniques (1) sampling by Solid-Phase MicroExtraction (SPME) with...
Emission of 2?methyl?3?buten?2?ol by pines: A potentially large natural source of reactive carbon to the atmosphere.
Harley P, et al.
Journal of Geophysical Research: Atmospheres, 103(D19), 25479-25486 (1998)
Tian-He Wang et al.
Huan jing ke xue= Huanjing kexue, 32(12), 3599-3605 (2012-04-04)
Multiphase acid-catalyzed oxidation with hydrogen peroxide (H2O2) has been suggested recently to be a potential route to SOA formation, but the kinetics and chemical mechanism of this process have not been well-known yet. In this work, the uptake of 3-methyl-3-buten-1-ol...
Dennis W Gray et al.
The Journal of biological chemistry, 286(23), 20582-20590 (2011-04-21)
2-Methyl-3-buten-2-ol (MBO) is a five-carbon alcohol produced and emitted in large quantities by many species of pine native to western North America. MBO is structurally and biosynthetically related to isoprene and can have an important impact on regional atmospheric chemistry....
Arthur W H Chan et al.
Environmental science & technology, 43(13), 4647-4652 (2009-08-14)
2-Methyl-3-buten-2-ol (MBO) is an important biogenic hydrocarbon emitted in large quantities by pine forests. Atmospheric photooxidation of MBO is known to lead to oxygenated compounds, such as glycolaldehyde, which is the precursor to glyoxal. Recent studies have shown that the...
Theodore S Dibble et al.
Physical chemistry chemical physics : PCCP, 8(4), 456-463 (2006-02-17)
Quantum mechanical calculations were used to determine the structure and energetics of peroxy radicals (P1 and P2) and alkoxy radicals (A1-A3) formed in the atmospheric degradation of 2-methyl-3-buten-2-ol. At the level of theory employed (B3LYP/6-31G(d,p)) low energy conformers were identified...
[The sedative-hypnotic action of hops. 4. Pharmacology of the hop substance 2-methyl-3-buten-2-ol].
R Wohlfart et al.
Planta medica, 48(2), 120-123 (1983-06-01)
J Zeidler et al.
Planta, 213(2), 323-326 (2001-07-27)
The volatile hemiterpene 2-methyl-3-buten-2-ol (MBO) is emitted from the needles of several pine species from the Western United States and contributes to ozone formation in the atmosphere. It is synthesised enzymatically from dimethylallyl diphosphate (DMAPP). We show here that needles...
Eric Praske et al.
The journal of physical chemistry. A, 119(19), 4562-4572 (2014-12-09)
First generation product yields from the OH-initiated oxidation of methyl vinyl ketone (3-buten-2-one, MVK) under both low and high NO conditions are reported. In the low NO chemistry, three distinct reaction channels are identified leading to the formation of (1)...
Ze Liu et al.
Physical chemistry chemical physics : PCCP, 13(6), 2069-2075 (2011-01-05)
Multiphase acid-catalyzed oxidation with hydrogen peroxide (H(2)O(2)) has been suggested recently to be a potential route to SOA formation from isoprene and its gas-phase oxidation products, the kinetics and chemical mechanism of this process have not been well-known yet. In...
B Baker et al.
Environmental science & technology, 35(9), 1701-1708 (2001-05-18)
Canopy level flux measurements of 2-methyl-3-buten-2-ol (MBO), acetone, and methanol were made over a subalpine forest in the Rocky Mountains in Colorado in the summer of 1999. The measurements were carried out using a portable relaxed eddy accumulation system that...
Reggie Spaulding et al.
Journal of the American Society for Mass Spectrometry, 13(5), 530-542 (2002-05-22)
In the western United States, in areas where emissions of the biogenic hydrocarbon, 2-methyl-3-buten-2-ol (MBO) are high, MBO contributes significantly to the oxidative capacity of the atmosphere. Hydroxyl radical oxidation of MBO can play an important role in forming tropospheric...
[Penetration of primary and tertiary alcohol isomers through rubber and isolated skin].
A L Mikhaleva et al.
Gigiena truda i professional'nye zabolevaniia, (11)(11), 46-47 (1982-01-01)
Haofei Zhang et al.
Environmental science & technology, 46(17), 9437-9446 (2012-08-02)
2-Methyl-3-buten-2-ol (MBO) is an important biogenic volatile organic compound (BVOC) emitted by pine trees and a potential precursor of atmospheric secondary organic aerosol (SOA) in forested regions. In the present study, hydroxyl radical (OH)-initiated oxidation of MBO was examined in...
R Hänsel et al.
Zeitschrift fur Naturforschung. Section C, Biosciences, 35(11-12), 1096-1097 (1980-11-01)
Hops are told to promote sleep; manyfold efforts to detect the soporific principle have been unsuccessful so far. Preliminary pharmacological tests lead to the conclusion that the soporific activity of the exhalation of hops can be explained by its content...
A J Franklin et al.
Journal of chemical ecology, 27(12), 2425-2435 (2002-01-16)
Responses of the European spruce bark beetle, 1. typographus (Coleoptera: Scolytidae), to low release-rate pheromones were investigated in two experiments in a spruce forest at Wellin, southern Belgium. Dose-response of the beetle was first examined in a trapping experiment in...
Hartmut K Lichtenthaler
Photosynthesis research, 92(2), 163-179 (2007-07-20)
The localization of isoprenoid lipids in chloroplasts, the accumulation of particular isoprenoids under high irradiance conditions, and channelling of photosynthetically fixed carbon into plastidic thylakoid isoprenoids, volatile isoprenoids, and cytosolic sterols are reviewed. During leaf and chloroplast development in spring...
Judith Schuster et al.
Journal of bacteriology, 194(5), 972-981 (2011-12-24)
Tertiary alcohols, such as tert-butyl alcohol (TBA) and tert-amyl alcohol (TAA) and higher homologues, are only slowly degraded microbially. The conversion of TBA seems to proceed via hydroxylation to 2-methylpropan-1,2-diol, which is further oxidized to 2-hydroxyisobutyric acid. By analogy, a...
K Miyashita et al.
Mechanisms of ageing and development, 13(2), 177-184 (1980-06-01)
Eighty compounds in normal mouse urine vapor are identified, 61 of which have not previously been reported in normal mouse urine. Two of the ten most strongly age-correlated substances in the mouse urine vapor are confirmed as 3-hydroxy-3-methylbutene and trans-3-hepten-2-one.
V F Malone et al.
Applied and environmental microbiology, 65(6), 2622-2630 (1999-05-29)
We have been working to develop an enzymatic assay for the alcohol 2-methyl-3-buten-2-ol (232-MB), which is produced and emitted by certain pines. To this end we have isolated the soil bacterium Pseudomonas putida MB-1, which uses 232-MB as a sole...
Dennis W Gray
Journal of chemical ecology, 28(8), 1583-1597 (2002-10-10)
Methylbutenol (MBO) is a major component of the aggregation pheromone of the European spruce beetle Ips typographus and also has been found to be emitted in large amounts by several species of pine native to western North America. This study...
Kenshi Takahashi et al.
The journal of physical chemistry. A, 114(12), 4224-4231 (2010-03-10)
The gas-phase reactions of Cl atoms with allyl alcohol (k(1)), 3-buten-2-ol (k(2)), and 2-methyl-3-buten-2-ol (k(3)) at 296 +/- 2 K have been investigated using absolute and relative rate methods in 1-700 Torr of N(2) diluent. Absolute rate studies were performed...
Todd N Rosenstiel et al.
Plant physiology, 129(3), 1276-1284 (2002-07-13)
The biosynthesis and emission of volatile plant terpenoids, such as isoprene and methylbutenol (MBO), depend on the chloroplastic production of dimethylallyl diphosphate (DMAPP). To date, it has been difficult to study the relationship of cellular DMAPP levels to emission of...
[Detection of sedative-hypnotic active ingredients in hops. 5. Degradation of bitter acids to 2-methyl-3-buten-2-ol, a hop constituent with sedative-hypnotic activity].
R Wohlfart et al.
Archiv der Pharmazie, 316(2), 132-137 (1983-01-01)
Canopy fluxes of 2?methyl?3?buten?2?ol over a ponderosa pine forest by relaxed eddy accumulation: Field data and model comparison.
Baker B, et al.
Journal of Geophysical Research: Atmospheres, 104(D21), 26107-26114 (1999)
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