Dimethyl carbonate CAS: 616-38-6

Dimethyl carbonate (DMC), Ngwa ngwa kemịkalụ nke nwere obere nsí, ezigbo ọrụ nchekwa gburugburu ebe obibi yana ngwa sara mbara, bụ etiti dị mkpa maka njikọ organic.Ọdịdị molekụla ya nwere otu ndị na-arụ ọrụ dị ka carbonyl, methyl na methoxy, ọ nwekwara mmeghachi omume dị iche iche.Ọ nwere njirimara nke iji nchekwa, ịdị mma, obere mmetọ na njem dị mfe na mmepụta.Dimethyl carbonate bụ ngwaahịa kemịkalụ "akwụkwọ ndụ akwụkwọ ndụ" na-ekwe nkwa n'ihi obere nsị ya.

Usoro ihe omimi: C3H6O3;(CH3O) 2CO;CH3O-COOCH3

Arọ molikula: 90.07

CASNO: 616-38-6

Nọmba EINECS: 210-478-4

Iji ihe okike mara mma na ihe owuwu molekụla pụrụ iche nke DMC na-ekpebi ngwa ya sara mbara, nke enwere ike ịchịkọta dị ka ndị a:

Dochie phosgene apịaji ka ọ bụrụ ihe nnọchite carbonylation.

Ọ bụ ezie na phosgene (Cl-CO-Cl) nwere mmeghachi omume dị elu, ngwaahịa ya na-egbu egbu na nke na-emebi emebi na-eme ka ọ na-eche nnukwu nrụgide gburugburu ebe obibi ihu, ya mere a ga-eji nwayọọ nwayọọ kpochapụ ya.DMC (CH3O-CO-OCH3) nwere etiti mmeghachi omume nucleophilic yiri ya.Mgbe ndị nucleophiles wakporo otu carbonyl nke DMC, njikọ acyl-oxygen na-agbaji iji mepụta ogige carbonyl, na ngwaahịa ya bụ methanol.Ya mere, DMC nwere ike dochie phosgene dị ka a mma mmeghachi omume reagent synthesize carbonic acid mmepụta, dị ka carbamate pesticides, polycarbonates, isocyyanates, wdg, n'ime nke polycarbonate ga-abụ ubi na kasị ukwuu na-achọ DMC.E buru amụma na na 2005.

Dochie dimethyl sulfate apịaji ka ọ bụrụ onye nnọchi anya methylating.

Maka ihe ndị yiri phosgene, dimethyl sulfate (CH3O-SO-OCH3) na-echekwa nrụgide nke mkpochapụ.Mgbe ndị nucleophiles wakporo methyl carbon nke DMC, a na-agbaji njikọ alkyl-oxygen ya na ngwaahịa methylated na-emepụtakwa.Ọzọkwa, mmeghachi omume mmeghachi omume nke DMC dị elu na usoro ahụ dị mfe karịa nke dimethyl sulfate.Isi ihe eji eme ihe gụnyere synthesizing organic intermediates, ngwaahịa ọgwụ, ngwaahịa pesticide, wdg.