Results 111 to 120 of about 7,205 (166)

2,3,5,6-Tetrakis(phenoxymethyl)pyrazine and 2,3,5,6-tetrakis(phenylsulfanylmethyl)pyrazine

Acta Crystallographica Section C Crystal Structure Communications, 2007
The title compounds, C(32)H(28)N(2)O(4), (I), and C(32)H(28)N(2)S(4), (II), respectively, are tetrasubstituted pyrazines and both possess C(i) symmetry. They differ only in the hetero atom (X) of the -CH(2)XPh side-arm substituents: X = O in (I) and S in (II).
Assoumatine T, Gasser G, Stoeckli-Evans H   +2 more
openaire   +3 more sources

Pyrazines

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

The pyrazine-binding protein and olfaction

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1988
1. The present results provide circumstantial evidence, but not a proof, that the Pyrazine-binding Protein is an odorant carrier molecule of fundamental importance. 2. At first sight a role for a secretory protein in olfaction is not obvious. 3.
BIGNETTI, Enrico, CATTANEO, CAVAGGIONI A, DAMIANI G, TIRINDELLI, Roberto   +4 more
openaire   +3 more sources

Vapour and crystal spectra in polarized light of pyrazine-d0, cis pyrazine-d2 and pyrazine-d4

Spectrochimica Acta, 1964
Abstract The infrared spectra of pyrazine-d0, cis pyrazine-d2 and pyrazine-d4 have been measured between 4000 and 400 cm−1. The spectra have been obtained in the vapour and solid states. The dichroic behaviour of the bands has been measured on polycrystalline fully oriented samples.
S. Califano, G. Adembri, G. Sbrana
openaire   +1 more source

Pyrazine chemistry. Part 9. Oxygenation of pyrazines and pyrimidines

Journal of the Chemical Society, Perkin Transactions 1, 1979
Singlet oxygen adds to certain substituted pyrazines and pyrimidines to form the endo-peroxides in high yield. The peroxides derived from the pyrazines are often stable compounds. 2,5-Diethoxy-3,6-dimethyl-3,6-epidioxy-3,6-dihydropyrazine can be reduced to the corresponding diol with sodium borohydride, whilst the parent pyrazine is regenerated by ...
Janet L. Markham, Peter G. Sammes
openaire   +1 more source

The Pyrazines.

Chemical Reviews, 1947
I J, KREMS, P E, SPOERRI
openaire   +2 more sources

Pyrazines

2021
Jie Jack Li, Minmin Yang
openaire   +1 more source

Control strategies of pyrazines generation from Maillard reaction

Trends in Food Science and Technology, 2021
Hang Yu, Yunfei Xie, Weibiao Zhou
exaly  

Pyrazines Biosynthesis by Bacillus Strains Isolated from Natto Fermented Soybean

Biomolecules, 2021
Grzegorz Kłosowski, Dawid Mikulski, Grzegorz Kłosowski   +2 more
exaly  

Comparison of pyrazines formation in methionine/glucose and corresponding Amadori rearrangement product model

Food Chemistry, 2022
Chi-Tang Ho, Khizar Hayat, Heping Cui
exaly