I-Methyltriphenylphosphonium Bromide CAS 1779-49-3

I-CAS:1779-49-3

Ubunyulu:99%

Ifomula yemolekyuli:I-C19H18BrP

Ubunzima beMolekyuli:357.22

Shiya uMyalezo Wakho

Iinkcukacha zeMveliso

Khuphela

Iithegi zeMveliso

Yintoni iMethyltriphenylphosphonium Bromide CAS 1779-49-3?

I-Methyltriphenylphosphonium bromide yikristale emhlophe. Indawo yokunyibilika yi234-235℃. I-Methyltriphenylphosphonium bromide yinto eqinileyo ye-quaternary phosphonium ebuyisela idangatye letyuwa. Okwangoku, i-halogen-equlethe i-retardants ye-flame retardants isetyenziswa ngokubanzi i-organic flame retardants eneempawu ezibalaseleyo zokubuyiswa komlilo. Zisenokusetyenziswa njengee-reagents ze-Wittig ukulungiselela i-olefins kunye nokwandisa inani lekhabhoni yamatyathanga ekhabhoni angaxutywanga. Isandulela se-ylide ye-reaction ye-Wittig isetyenziswa ngokubanzi kwi-synthesis ye-unsaturated bonds kwizinto ze-crystal zamanzi. Ikwasetyenziswa ngokubanzi kwi-organic synthesis. Yinto elungileyo yenguqu yesigaba se-cationic catalyst.

Inkcazo

Into	Umgangatho
Imbonakalo	Ikristale emhlophe
Ubunyulu	≥99% min
Ukufuma	≤1%

Isicelo

1. I-core reagent ye-Wittig reaction: I-Methyltriphenylphosphonium bromide isetyenziselwa ukudibanisa i-olefins (ingakumbi i-terminal olefins) kunye nokuguqula i-aldehydes / ii-ketones zibe yi-olefins:

2. I-Methyltriphenylphosphonium bromide isetyenziswa ngokubanzi kwi-synthesis yeziyobisi (ezifana ne-vitamin A, i-prostaglandins), iimveliso zendalo (ezifana ne-pheromones yezinambuzane) kunye nokulungiswa kwezinto zokusebenza (ezifana ne-crystal molecules yamanzi).

3. I-catalyst yokudlulisa isigaba: I-Methyltriphenylphosphonium bromide ikhuthaza ukusabela phakathi kwesigaba samanzi kunye nesigaba sezinto eziphilayo kunye nokuphucula ukusebenza kakuhle kwee-ionic reactions.