ChemInform Abstract: 1-BROMOMETHYL-2,2-DICHLOROPROPANE AS AN ALKYLATION REAGENT

1979 ◽  
Vol 10 (43) ◽  
Author(s):  
K. STEINBECK
Keyword(s):  
Alkylation Reagent

scholarly journals Konversi katalitik n-butanol menjadi hidrokarbon Cr~C4 menggunakan katalis B2O3/zeolit alam

2018 ◽  
Vol 6 (2) ◽  
pp. 649
Author(s):  
S Setiadi ◽  
D Dariyus
Keyword(s):  
Surface Area ◽  
Active Site ◽  
Boron Oxide ◽  
Natural Zeolite ◽  
Fermentation Process ◽  
Oxide Catalyst ◽  
High Surface ◽  
High Surface Area ◽  
Catalytic Performance ◽  
Alkylation Reagent

C2~C4 hydrocarbons are important petrochemical feedstocks for polymer, MTBE, alkylation reagent and LPG. Those hydrocarbons can be produced sustainable from n­butanol through the catalytically reaction which can be produced renewably through a fermentation process. The development of catalytically can be done by using natural zeolite by adding boron oxide (B203.   The combination of these two catalyst's substance is hoped to increase  the catalytic performance  in converting  n-butanol  to hydrocarbon  of C2~C4 .This research has studied that addition boron oxide in natural zeolite as much as 25% gave the highest conversion (82,9%) and yield of C2~C4 (14,7% at 400°C}. No peaks due to the boron oxide catalyst on the XRD spectrum and the high surface area of natural zeolite (343 m2/g) strongly suggest that the boron oxide was dispersed perfectly on the surface of natural zeolite and interacted strongly with zeolite's frame. The formation of a new active site for converting n-butanol to hydrocarbon C2~C4 is highly considered which is more active comparing to natural zeolite or boron oxide itself.Keyword : n-butanol, hydrocarbon C2~C4, boron oxide, catalytic conversionAbstrakHidrokarbon  C2~C4  merupakan  senyawa  yang  penting  da/am  industri  kimia petrokimia misalnya  bahan baku po/imer,  MTBE,  untuk  alki/asi, senyawa  isookatana maupun LPG. Sampai   saat   ini, sumber   utama senyawa   hidrokarbon   tersebut   berasal   dari   hasi/ pengolahan minyak  bumi. Karena  semakin  menispisnya  cadangan  minyak  dunia,  maka dimasa depan kebergantungan  hidrokarbon  C2~C4  ini pada pasokan  minyak harus segera dicarikan  alternatif sumber  lainnya yang  lebih terjaga kesinambungannya.  Penelitian ini bermaksud menyajikan bahwa hidrokarbon C2~C4 dapat dipero/eh dari senyawa organik n­ butanol melalui reaksi katalitik menggunakan kata/is zeolit a/am. Proses ini sangat penting karena reaktan n-butanol merupakan suatu senyawa yang renewable (dapat diperbaharui) dari proses fermentasi.  Zeolit alam dimodifikasi dengan penambahan boron oksida dengan berbagai kadar. Hasil yang dipero/eh bahwa boron oksida berkandungan 25% memberikan hasif yang paling baik, dengan konversi butnao/  82,9 % dan yield  C2~C4  14,7 %  dengan suhu reaksi  400  °C Namun,  karakterisasi XRD  tidak  menunjukkan puncak-puncak yang dimiliki oleh komponen boron oksida. Hal ini menunjukkan bahwa boron oksida terdispersi secara sempurna pada permukaan zeo/it a/am (343 m2/g), berinteraksi secara kuat dengan frame kerangka  zeolit  dan terbentuknya spesi inti aktif baru hasil perpaduan  zeolit  alam maupun boron oksida yang lebih aktif da/am mengkonversi n-butanol menjadi C2~C4.Kata Kunci :n-butanol, hidrokarbon C2~C4, boron oksida, konversi katalitik

Visible-light- and bromide-mediated photoredox Minisci alkylation of N-heterarenes with ester acetates

2021 ◽  
Author(s):  
Chunlian Wang ◽  
Hang Shi ◽  
Guo-Jun Deng ◽  
Huawen Huang
Keyword(s):  
Visible Light ◽  
Ethyl Acetate ◽  
Alkylation Reaction ◽  
Low Toxic ◽  
Alkylation Reagent ◽  
First Time

A visible-light-induced photoredox Minisci alkylation reaction of N-heteroarenes with ethyl acetate has been reported. The low-toxic ethyl acetate was used for the first time as alkylation reagent. Hence, 4-quinazolinones, quinolines...

New triad alkylation reagent. Cross coupling of indium trialkyls with alkenyl halides

1992 ◽  
Vol 114 (7) ◽  
pp. 2738-2740 ◽  
Author(s):  
Ryoki Nomura ◽  
Shinichiro Miyazaki ◽  
Haruo Matsuda
Keyword(s):  
Cross Coupling ◽  
Alkylation Reagent

ChemInform Abstract: New Triad Alkylation Reagent. Cross-Coupling of Indium Trialkyls with Alkenyl Halides.

ChemInform ◽  
2010 ◽  
Vol 23 (29) ◽  
pp. no-no
Author(s):  
R. NOMURA ◽  
S.-I. MIYAZAKI ◽  
H. MATSUDA
Keyword(s):  
Cross Coupling ◽  
Alkylation Reagent
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