• Re: Mitsunobu reaction: possible side reaction with sulfide?

    Updated: 2011-08-31 16:53:30
    Chemistry Cat flinches at the assortment of nucleophiles in your starting material.Chemistry Cat suggests you perform nucleophilic substitution of the phenol with mild base on your 2-tosylethanol, and then activate the alcohol later. Fewer things can go wrong.

  • Core Holes in Gaussian 09

    Updated: 2011-08-31 16:48:13
    Does anyone know how to put a hole in a specific orbital in Gaussian? When you specify a charge of +1, it automatically takes an electron out of the HOMO. I am trying to calculate core ionization energies and want to specify a hole in a deeper orbital. I have searched the Gaussian website and the internet without finding an answer.Thank you in advance.

  • Re: Mitsunobu reaction: possible side reaction with sulfide?

    Updated: 2011-08-31 16:41:02
    : UserInfo : August 31, 2011, 05:54:32 AM Welcome , Guest Please login or register Did you miss your activation email 1 Hour 1 Day 1 Week 1 Month Forever Login with username , password and session length Forum Rules Read This Before Posting Home Help Search Calendar Login Register Search Chemical Forums ChemicalForums , Google Chemistry-Blog Chemistry Nobel Prize 2010 Chemistry-Blog.com Google Sponsors Content ChemBuddy ChemFeeds Chemical Forums Chemistry Blog Chem Reddit : Resources General Chem Word Dict . Periodic Table Chemical Forums Chemistry Forums for Students Organic Chemistry Forum Moderators : movies Yggdrasil Mitsunobu reaction : possible side reaction with sulfide Pages : 1 Go Down previous next Print Author Topic : Mitsunobu reaction : possible side reaction with sulfide Read

  • MOVED: What do substance Molecule Images Mean (Should be easy to answer)

    Updated: 2011-08-31 16:31:39
    This topic has been moved to High School Chemistry Forum.http://www.chemicalforums.com/index.php?topic=50879.0

  • Re: What do substance Molecule Images Mean (Should be easy to answer)

    Updated: 2011-08-31 16:30:49
    http://en.wikipedia.org/wiki/Skeletal_formula

  • Confessions of a Country Boy

    Updated: 2011-08-30 20:45:34
    After much thought I have decided to come clean on the matter of the supposed inherent goodness of growing up rural. I was born to Iowa corn and hog farmers in the late 1950′s.  This business of supposing that growing up on a farm magically confers a kind of wholesomeness is based on some faulty assumptions:  [...]

  • Cheap Laugh Tuesdays #1: Ionic Attractions

    Updated: 2011-08-30 17:48:06
    Welcome to Cheap Laugh Tuesdays! (CLT) I always throw a cartoon or comic strip up on the screen before I start class to lighten the mood and give the students something to look forward to.  After one year of teaching, I've developed quite a little collection of super awesome science & chemistry related cartoons.  I'll [...]

  • Jetman Flys the Grand Canyon

    Updated: 2011-08-30 02:22:07
    Wow. This guy has style.

  • This week on Chemistry World

    Updated: 2011-08-30 01:05:49
    28 July 2011: Have something to say about an article you’ve read on Chemistry World this week? Leave your comments below… Graphene memorises data in a flash A prototype graphene flash memory material is already outperforming its commercial silicon counterparts on data storage EPA’s laboratory management weaknesses persist EPA urged to revamp its lab system for [...]

  • Denver ACS Meeting

    Updated: 2011-08-29 02:39:51
    Just back from Day 1 at the Denver ACS meeting.  Spent the afternoon at the INORG session celebrating the 50th anniversary of the journal Inorganic Chemistry.  As usual, Harry Gray stole the show with his talk- today it was on oxo complexes. What I like about Gray is that he shows the younger members that [...]

  • Bleaches and in-process checks of the enlightenment

    Updated: 2011-08-28 05:20:14
    In his 1736 publication Smegmatalogia, or the Art of Making Potashes and Soap, and Bleaching of Linens, James Dunbar describes a process for the preparation of potash.  The intended user of the process was the common Scottish farmer. Dunbar was anxious to imbue the common Scot with the ability to “bleach” his own linens.  It is important [...]

  • Astronomers talking about matter again

    Updated: 2011-08-26 17:43:39
    I’m always a little skeptical when I hear astronomers talking about specific compositions of matter out in the universe.  The recent gushing press release from Reuters about a diamond planet orbiting a neutron star just adds to my burden of disbelief.  I truly hope there is more evidence than that revealed in the press release. That is, the [...]

  • Oil Well Torpedoes and Grubbin’ Stumps

    Updated: 2011-08-26 06:45:56
    We tend to think of some things as being relatively new. I’m thinking of the gas and oil extraction technique of fracturing, or fracking.  In the 1884 third edition of The Modern High Explosives, Nitro-glycerine and Dynamite by Manuel Eissler, p 311, there is a mention of the practice of exploding nitroglycerine charges at the [...]

  • Unfortunate trigonometry and dynamic blind spots.

    Updated: 2011-08-25 20:29:14
    Near miss on the highway last night. I averted a high speed T-bone impact by a meter or two as Music from the Hearts of Space played on the radio. Good gravy- I was crashing to space music.  My Cherokee is quite stable in an emergency braking maneuver moving straight forward. But if swerving is required, then vehicle [...]

  • In praise of polyolefins

    Updated: 2011-08-24 20:33:34
    Being a person nestled in the dark and humid recesses of industry, I find myself boggling at certain things out in the bright and sunny world.  Truly, it boggles my mind how little appreciation people have for polyolefin resins. That is to say, polyethylene, polypropylene and all the myriad copolymers and formulations found thereto.  Ok, [...]

  • Seeking simplicity in process scale-up

    Updated: 2011-08-24 00:48:58
    My graduate school mentor use to say that you could synthesize anything if you had the right precursors. With enough clever reagent artistry, most small molecules can be assembled, though if only enough for an NMR spectrum.  With chromatography and small glassware, it is not unreasonable to do a few reactions on 1 mg of material and [...]

  • Yitao Long joins Editorial Board

    Updated: 2011-08-23 16:32:32
    Categories All OA in the Developing World Editorial Board Open Access Conferences Presentations Chemistry General Marketing About We want to hear from you Mail us at editorial chemistrycentral.com Search Links Our blogs BioMed Central Blog Chemistry Central Blog Open Repository Blog Open Access Central BioMed Central Chemistry Central Other links F1000 Biology F1000 Medicine ChEBI Chem DB ChemRefer ChemSpider Chemists Without Borders Experimental Data Checker IUPAC Links for Chemists Process Analytical Technology PubChem WebElements eMolecules Archive August 2011 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Today Chemistry Central Blog Tuesday Aug 23, 2011 Yitao Long joins Editorial Board We are delighted to announce

  • Chemistry Central at the ACS Fall Meeting

    Updated: 2011-08-22 13:15:09
    Categories All OA in the Developing World Editorial Board Open Access Conferences Presentations Chemistry General Marketing About We want to hear from you Mail us at editorial chemistrycentral.com Search Links Our blogs BioMed Central Blog Chemistry Central Blog Open Repository Blog Open Access Central BioMed Central Chemistry Central Other links F1000 Biology F1000 Medicine ChEBI Chem DB ChemRefer ChemSpider Chemists Without Borders Experimental Data Checker IUPAC Links for Chemists Process Analytical Technology PubChem WebElements eMolecules Archive August 2011 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Today Chemistry Central Blog Monday Aug 22, 2011 Chemistry Central at the ACS Fall Meeting Chemistry Central will be

  • This week on Chemistry World

    Updated: 2011-08-22 01:52:01
    22 August 2011: Have something to say about an article you’ve read on Chemistry World this week? Leave your comments below… Chemical activism targets big clothing brands Greenpeace has provoked promises from Nike that it will take action on supply chain chemicals Meteorites are a chip off the old asteroid block Dust scraped from an asteroid 300 [...]

  • Windows 7 and Office 2007. Grrrr.

    Updated: 2011-08-17 23:14:08
    Th’ Gaussling was upgraded to Windows 7 and Windows Office 2007 recently. I wish I could report that it has gone smoothly, but it has not.  Like millions of others I have been using the Office suite of software for a long while. The latest upgrade seems to have made a largish stepchange in alteration of [...]

  • (Organic) Super Base

    Updated: 2011-08-15 01:46:31
    (Organic) Super Base Lyrics By: azmanam With apologies to Nicki Minaj (Here's the radio edit of the original song for context, if Nicki Minaj doesn't make your normal radio station's playlist.  Probably still nsfw, language, though) This one is for the ketones with the alpha C’s aldehydes, or esters if you please When they rain [...]

  • Inside Chernobyl Nuclear Power Plant 2011, Part IV: Switchyard Control Room

    Updated: 2011-08-11 20:48:51
    Its reactors have been out of service for years, but Chernobyl Nuclear Power Plant’s vast electrical switchyard still buzzes with some of the highest voltages on the European continent.  It’s a distribution hub that channels hundreds of megawatts generated at other plants to consumers in northern Ukraine and southern Belarus.  The bustling control room for [...]

  • Inside Chernobyl Nuclear Power Plant 2011, Part II: Deaerator Corridor and Unit 1 Control Room

    Updated: 2011-08-09 06:53:10
    More interior photographs from the Chernobyl Nuclear Power Plant, this selection focusing on highlights of the Unit 1 control room and the building’s perhaps most distinguishing interior feature, its 600-meter-long “Gold Corridor.” Click any photo for a larger version with my description; click again for a full-size file. For this summer’s photos of the Unit [...]

  • Inside Chernobyl Nuclear Power Plant 2011, Part I: Unit 3 and V Block

    Updated: 2011-08-09 02:59:26
    I just returned from another trip to Chernobyl. We visited some parts of the power plant that we didn’t get to see on last year’s trip, but—as I’m sure my readers can understand—one day at the station wasn’t enough and I’m left pining for more! (I’m particularly lusting after a certain pachyderm appendage, if you [...]

  • Most accessed articles for July

    Updated: 2011-08-08 15:58:53
    Categories All OA in the Developing World Editorial Board Open Access Conferences Presentations Chemistry General Marketing About We want to hear from you Mail us at editorial chemistrycentral.com Search Links Our blogs BioMed Central Blog Chemistry Central Blog Open Repository Blog Open Access Central BioMed Central Chemistry Central Other links F1000 Biology F1000 Medicine ChEBI Chem DB ChemRefer ChemSpider Chemists Without Borders Experimental Data Checker IUPAC Links for Chemists Process Analytical Technology PubChem WebElements eMolecules Archive August 2011 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Today Chemistry Central Blog Monday Aug 08, 2011 Most accessed articles for July Take a look at our ten most accessed

  • Organic Chemistry Reactions Mind Map

    Updated: 2011-08-05 16:40:54
    Well... this oughta cover it. I was reading comments to my reddit submission of the many oxidation states of carbon, and Aa1979 asked if the functional groups could be arranged logically according to actual chemical transformations.  I replied that would be too reaction dependent... alcohols can be turned into a great many things (chlorides, alkenes, [...]

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