In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Effects of cigarette filter design on release behavior of monomer flavor in breakable capsule, published in 2021, which mentions a compound: 13925-00-3, mainly applied to cigarette filter alc ketone ester, Reference of 2-Ethylpyrazine.
In order to investigate the influences of cigarette filter design on the release of monomer flavor components in breakable capsules, the effects of capsule location in filter and filter ventilation on the transfer rates and puff-by-puff releases of 40 representative monomer flavor components in mainstream cigarette smoke were analyzed. The results showed that: 1) Capsule location in filter and filter ventilation levels significantly affected the transfer rates of the aroma components. The transfer rates of the monomer aroma components were higher when the capsule was planted at 6 mm to the mouth end as compared to those at 18 mm, or when the filter was unventilated. With the increase of the mol. weight of flavor compound, the transfer rate ratios between the capsule planted at 6 mm and that at 18 mm of the same component in alc., ketone and ester homologues presented different variation trends. The transfer rate ratios when the filter was unventilated to that of ventilated of the same component in these homologues deceased. 2) The puff-by-puff releases and the puff-by-puff releases per unit TPM of monomer aroma components were higher when the capsule was planted at 6 mm than at 18 mm. The puff-by-puff releases were higher and the puff-by-puff releases per unit TPM were lower when the filter was unventilated than ventilated. 3) The releases of those aroma components with a lower b.p., such as Et hexanoate, Et heptanoate, 2-heptanone, 2-octanone and 1-pentanol, increased significantly at the fourth and fifth puffs.
This compound(2-Ethylpyrazine)Reference of 2-Ethylpyrazine was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.