2 2-Dimethyl-1 3-dioxan-5-enye (CAS # 74181-34-3)
| Iimpawu ezinobungozi | Xi – Irritant |
| Iikhowudi zoMngcipheko | R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. I-R41 – Umngcipheko womonakalo omkhulu emehlweni I-R37/38 – Iyacaphukisa inkqubo yokuphefumla kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso S39 –Nxiba ukhuseleko lwamehlo / ubuso. S24/25-Kuphephe ukudibana nolusu namehlo. |
| Izazisi ze-UN | 1993 |
| Ikhowudi ye-HS | 29141900 |
| IKlasi yeeNgozi | 3 |
| Iqela lokuPakisha | III |
Intshayelelo
I-2,2-dimethyl-1, i-3-dioxan-5-enye i-organic compound kunye ne-formula C6H10O3. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
I-2,2-Dimethyl-1,3-dioxan-5-enye i-liquid engenambala kunye nephunga elikhethekileyo le-ketone. Inobunzima be-0.965 g / mL, indawo yokubilisa ye-156-157 ° C, kunye ne-flash point ye-60 ° C. Inyibilika kwiintlobo ezininzi ze-organic solvents ezifana ne-ethanol, i-ethyl acetate kunye ne-dichloromethane.
Sebenzisa:
I-2,2-Dimethyl-1,3-dioxan-5-enye isetyenziswa ngokuqhelekileyo i-organic synthesis intermediate. Ingasetyenziswa njenge-agent ketonizing, i-esterifying agent kunye ne-condensing agent kwi-synthesis. Ingasetyenziselwa ukuhlanganiswa kwezinye izinto eziphilayo, ezifana neengubo, ii-resin, iidayi, amayeza kunye neekhemikhali ezintle.
Indlela yokulungiselela:
Indlela yokulungiselela i-2,2-Dimethyl-1,3-dioxan-5-enye inokufezekiswa yi-Uskberg oxidation reaction. Ngokukodwa, i-1,3-butanediol iphendulwa nge-methyl iodide ukuvelisa i-2,2-dimethyl -1,3-dioxane. Emva koko, i-2,2-dimethyl -1,3-dioxane ixhomekeke kwi-oxidation reaction phambi kwe-iodine, kwaye imveliso yi-2,2-Dimethyl-1,3-dioxan-5-enye.
Ulwazi ngoKhuseleko:
