Selelekela se Feletseng
3.3 E le litho tse tšeletseng tsa heterocyclic ether, DHP e tsebahala haholo ka karolo ea eona ea ho sireletsa ts'ebetso ea joala ka ho theha ether ea tetrahydropyranyl (THP). Sena se e etsa hore e be ea bohlokoahali molemong oa ho kopanya mekhoa e mengata ea meriana, lihlahisoa tsa tlhaho le lik'hemik'hale tse ikhethang.
E hlahisoa ka catalytic hydrogenation ea dihydropyran kapa biomass-derived furfural, DHP e tsamaisana hantle le litlhoko tsa k'hemistri e tsitsitseng. Likarolo tsa mantlha tsa eona-base stability, acid sensitivity, le volatility-e tšehetsa ts'ebeliso ea eona ho li-resin, coatings, le tlhahiso e ntle ea lik'hemik'hale.
Lintlha tsa Sehlahisoa
| Lebitso la Sehlahiswa | 3,4-Dihydro-2H-pyran CAS 110-87-2 |
| CAS NO. | 110-87-2 |
| Litlhaloso tse tšoanang | DHP |
| Foromo ea limolek'hule | C5H8O |
| Khoutu ea HS | 2932999099 |
| Foromo ea Sebopeho |  |
Tlhaloso
|
Lintho |
Standard |
|
Ponahalo |
Seela se se nang mmala se bonaletsang |
|
Bohloeki (%) |
E kholo ho feta kapa e lekana le 98.5 |
|
Mongobo (%) |
Ka tlase ho kapa ho lekana le 0.25 |
|
THP(%) |
1.3 boholo |
|
Flash point |
~-6℃(kopi e koetsoeng) |
|
Monko o monate |
Ether-ke rata |
|
Sephutheloana |
Meropa ea lik'hilograma tse 180, libotlolo tsa lab |
| Boima ba 'mele (g/cm³) | 0.922 |
Tšebeliso le Mosebetsi oa Motheo oa 3,4-Dihydro-2H-pyran CAS 110-87-2
(A Intermediate Intermediate for Advanced Synthesis)
- Tšireletso ea Joala ho Organic Synthesis:
DHP e etsa li-ethers tsa THP ka lino tse tahang tlas'a catalysis e bonolo ea asiti, e fana ka joala bo sa sebetseng ho li-nucleophiles le metheo nakong ea mekhoa e rarahaneng ea maiketsetso. Lihlopha tsa THP li tlosoa habonolo ka ho sebelisa li-acid tse hlapollang.
- Multistep Drug Synthesis:
E sebelisoa ha ho etsoa li-steroids, HIV protease inhibitors, le lithibela-mafu tsa macrolide ka ho khetha masking lihlopha tsa hydroxyl.
- Tsa Mahareng ho Lik'hemik'hale Tsa Indasteri:
Selelekela sa motsoako oa litatso, monko o monate (mohlala, metsoako ea musk), le lik'hemik'hale tsa agrochemicals.
- Polymer le Resin Chemistry:
E fana ka li-cyclic ether build blocks bakeng sa-coatings tse sebetsang hantle le lisebelisoa tsa UV- tse phekolehang.
- Biomass-Molek'hule ea Platform e Nkiloeng:
DHP e ka etsoa ho tsoa ho furfural, e leng se etsang hore e be karolo e sebetsang ka har'a bio{{0}e thehiloeng ho solvent le litlatsetso.
Bokhoni ba Tlhahiso
-Setifikeiti se Feletseng sa Polokeho ea Libaesekele
Likopo tse khothalelitsoeng tsa Sehlahisoa
Tšebeliso ea meriana (mohlala, erythromycin, corticosteroids)
Agrochemical intermediates
Tšireletso ea tsoekere ka k'hemistri ea lik'habohaedreite
Lirafshoa{{0}tse phekolehang le-li-resin tse phahameng
Ho kopanya mafura (mohlala, tsela ea solketal)
Tsoelo-pele ea motsoako oa monko o monate
Papiso ea DHP ka Likereiti tse Fapaneng:
Ho paka:
E tiisitsoe ka: 180 kg meropa (liindasteri), 1L/5L libotlolo (lab scale)
LBH
P: Tšebeliso ea mantlha ea DHP ho chemistry ea organic ke efe?
A: E sebelisoa haholo ho sireletsa lihlopha tsa joala joalo ka li-ether tsa THP nakong ea ho kopanya. Sena se lumella maikutlo a ikhethileng hore a etsahale ntle le tšitiso ea lihlopha tsa hydroxyl.
P: Na DHP e tsoa mehloling e ka nchafatsoang?
A: Ho joalo. DHP e ka hlahiswa ho tswa ho furfural, e ntshiwang ho tswa ditshila tsa temo tse kang makgohlo le mekotla.
P: Sehlopha sa THP se tlosoa joang?
K: Lihlopha tsa THP li tlosoa ho sebelisoa aqueous acid e hlapollang, e nchafatsa joala ba pele ka litlamorao tse fokolang.
Tlhaloso
|
Lintho |
Standard |
|
Ponahalo |
Seela se se nang mmala se bonaletsang |
|
Bohloeki (%) |
E kholo ho feta kapa e lekana le 98.5 |
|
Mongobo (%) |
Ka tlase ho kapa ho lekana le 0.25 |
|
THP(%) |
1.3 boholo |
|
Flash point |
~-6℃(kopi e koetsoeng) |
|
Monko o monate |
Ether-ke rata |
|
Sephutheloana |
Meropa ea lik'hilograma tse 180, libotlolo tsa lab |
| Boima ba 'mele (g/cm³) | 0.922 |
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