Topic profile page for Alkylation.
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Topic "Alkylation" was discussed 0 times on 0 sites in last 3 months
United Steelworkers Union Calls for Industry-Wide... United Steelworkers Union Calls for Industry-Wide Phase-Out of Hydrogen Fluoride in Oil Refinery Alkylation Units http://chilp.it/?a25990 9:12 PM Sep 1st from TweetIE
Started 1 month, 2 weeks ago (2009-11-09 17:11:00)
by Enantiomer
Hey all, Just a quick question, I'm looking at the last question in a problem set I'm doing and I'm pretty sure I know the answer but I wana be 100% sure before I write it down, The question is "briefly explain why allyl bromide is more reactive than ethyl bromide toward alkylation of tosylamide anion in acetone?" My answer is most likely that it will give an improved E/Z selectivity, however I ...
Started 1 month, 2 weeks ago (2009-11-10 00:01:00)
by azmanam
unfortunately, you're barking up the wrong tree. Tosylamide (RHN - ) is a good nucleophile, and acetone (being a polar aprotic solvent) makes nucleophiles even more nucleophilic. The reaction is going to be an S N 2 reaction. So what makes allyl bromide (CH 2 =CHCH 2 Br) a better electrophile toward S N 2 than ethyl bromide?
Started 1 month, 2 weeks ago (2009-11-06 00:00:00)
by News Feed
by the browser version you are currently using. Browser upgrades are quick and free so please take the time to ensure that you are using a recent browser version for your operating system. PC Users Macintosh Users * for Mac is no longer supported by its More...
Started 1 month, 2 weeks ago (2009-11-05 13:33:00)
by coolguy99
I am absolutely not understanding this stuff, I guess, because I keep getting these types of questions wrong: For the first one, I thought the hydrogen on the far left would leave due to the NH2, which would produce a negative charge on the terminal alkyne carbon, which would then bond to the carbon with the Br attached, pushing the bromine off. But it wasn't right same deal with the ...
Started 1 month, 2 weeks ago (2009-11-05 14:22:00)
by azmanam
your understanding is spot on. this is one of the touchy subjects with owl. the instructions ask you to draw the major organic product. You have included the inorganic product. Remove Na+ and Br- and you will get credit for the right answer. The bit about more than one product is only when you get more than one organic product. Imho, it is important and useful to know a) that there are ...
Started 1 month, 1 week ago (2009-11-15 22:39:00)
by sg
In a Friedel Crafts alkylation reaction, the role of ALCL3 is to assist ionization of the C-Cl bond by weakining it and making it a better leaving group. What is the purpose of AlCl3 and FeBr3 in bromination and chlorination reactions? Do they serve the same purpose as in the Friedel crafts alkylation reactions or are they needed simply to form a better electrophile by forming a permanent dipole?...
Started 1 month, 1 week ago (2009-11-14 13:29:00)
by shancheti
A vaginal mass is biopsied in a child and stained for intermediate filaments. Desmin is demonstrated. The MOA of the drug used to treat this condition is A) DNA alkylation B) DNA intercalation C) DNA polymerase inhibition D) Microtubule assembly inhibitor E) Monoclonal antibody against offending protein
Started 1 month, 2 weeks ago (2009-11-09 19:55:00)
by Schrödinger
Hey guys I was going through Friedel Crafts alkylation and acylation reactions. There was this order of reactivity of compounds given: For FC(Friedel Crafts) alkylation, RF>RCl>RBr>RI For FC acylation, ROI>ROCl>ROBr>ROF There is no explanation offered in any of my books. I tried searching the web, but the topic is too specific...(couldn't get any relevant search results.) I gave it a ...
Started 1 month, 2 weeks ago (2009-11-04 22:03:00)
by staringcontest
i cant find on google or even the text about catalytic cracking. i need to know a definition and an example. i know its something like CH 3 -CH 3 ---> CH 2 =CH 2 + H 2 right? also, what is catalytic reforming and an example, alkylation and an example those are the ones i cant figure out
Started 5 days, 21 hours ago (2009-12-19 05:31:00)
by mtyson
Metribolone NOTICE: This information is for entertainment purposes ONLY! Full profiles on each individual steroid are here. Pharmaceutical Name: Methyltrienolone Chemical structure: 17-methylestra-4,9,11-trien-3-one,17b-ol Molecular weight of base: 284.3974 Effective dose: 5-15 mg / day Average Street-price: Only available for research purposes. Available Doses: None ...
Started 20 hours, 16 minutes ago (2009-12-24 07:09:00)
by ohidul
Zeolites: Science and Technology (NATO Science Series E: (closed)) Zeolites have been the focus of intensive activity and growth in applications over the past 25 years in ion exchange, in adsorption and in catalytic process technology. Beginning with the synthetic zeolites A, X and Y, continuing into the emerging ZSM series, and including selected natural zeolites, ...
