A confirmation method for alkyl and aryl formates involving electron impact and chemical ionization mass spectrometry.

Yonekawa, Yasuhiko; Kuwahara, Yasumasa; Suzuki, Takahisa

doi:10.1271/bbb1961.51.3387

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A characteristic [M -46] + ion was observed from loss of HCOOH as m/z = 154 and 182, respectively (Yonekawa et al, 1987). A characteristic McLafferty rearrangement ion, C 2 H 4 O 2 (m/z = 60), was observed in all of the fatty acid mass spectra.…”

Section: Structure Determinationmentioning

confidence: 97%

Structure and function of Dufour gland pheromones from the crazy ant Paratrechina longicornis

et al. 2007

View full text Add to dashboard Cite

Dufour glands of Paratrechina longicornis were analyzed chemically using GC-MS techniques. The glands contained twelve alkanes between C 9 and C 20 chain length with undecane and tridecane as the main components, six alkenes (1-and 4-undecene, 1-, 4-, and 6-tridecene, and heptadecadiene), two alkyl formates (C 11 and C 13 ), and saturated and polyunsaturated acids. Many of the alkanes and alkenes were behaviorally active causing a short lasting attraction of ants with different intensity. Detection of the major gland compound undecane in recruitment trails by in vivo SPME sampling provided evidence for its use as a recruitment pheromone. Both poison gland (formic acid) and Dufour gland (undecane) contents were detected on SPME fibers which had been attacked by the ants.

show abstract

Section: Structure Determinationmentioning

confidence: 97%

Structure and function of Dufour gland pheromones from the crazy ant Paratrechina longicornis

et al. 2007

View full text Add to dashboard Cite

show abstract

Some aspects of isobutane and ammonia chemical ionization for the analysis of volatile esters and phenylpropanoids occurring in essential oils

Lange

Schultze

1992

Org. Mass Spectrom.

View full text Add to dashboard Cite

Tbe fragmentation reactions of some terpewid esters and pbenylpropanoids under tbe conditions of isobutaw and ammonia chemical ionization (CI) are d i s c d Tbe esters sbow different bebaviour witb these two gases with respect to determination of the relative molecular mass and information about the structure of tbe molecoles. Tbe structural isomers of the pbenylpropanoids can uaequivdy be distinguished witb both isobutaw and ammonia CI. Cis/trrurs isomers of tbe pbenylpropmoids sbow virt(lpuy identical CI spectra. EXPERIMENTALThe compounds were measured using GC/MS. Compounds 1 and 2 were contained in balm oil (essential leaf oil of Melissa ofticinah L.) and were measured in the latter without prior isolation. All other compounds were obtained commercially and were combined in a few mixtures for measurements by GC/MS.The GC conditions were as follows: gas chromatograph Varian Model 3700; capillary columns (coupled to the mass spectrometer via an open split interface), DB-WAX (30 m x 0.25 mm i.d.), film thickness 0.25 pm, and CpWAX57CB (50 m x 0.32 i.d.), film thickness 0.22 pm; carrier gas, helium; flow-rate, 0.9-1.5 ml min-'; temperature programme, 5 min at 60"C, then heated at 3 "C min-to 200 "C; injection , split mode.The conditions for MS were as follows: mass spectrometer, Finnigan MAT 8200; data system, Finnigan MAT SS300; reagent gases, isobutane (99.5%) and ammonia (99.8%) (obtained from Messer Griesheim, Frankfurt, Germany); ion-source conditions : nominal 0030-493)3/92/

show abstract

Neral (the Alarm Pheromone) Biosynthesis via the Mevalonate Pathway, Evidenced by D-Glucose-1-13C Feeding in Carpoglyphus lactis and 13C Incorporation into Other Opisthonotal Gland Exudates1

et al. 2004

View full text Add to dashboard Cite

A confirmation method for alkyl and aryl formates involving electron impact and chemical ionization mass spectrometry.

Cited by 3 publications

References 0 publications

Structure and function of Dufour gland pheromones from the crazy ant Paratrechina longicornis

Structure and function of Dufour gland pheromones from the crazy ant Paratrechina longicornis

Some aspects of isobutane and ammonia chemical ionization for the analysis of volatile esters and phenylpropanoids occurring in essential oils

Neral (the Alarm Pheromone) Biosynthesis via the Mevalonate Pathway, Evidenced by D-Glucose-1-13C Feeding in Carpoglyphus lactis and 13C Incorporation into Other Opisthonotal Gland Exudates1

Contact Info

Product

Resources

About