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  1. Difference between a dimethyl and ethyl substituent groups

    May 10, 2015 · 1 I'm teaching myself organic chemistry and am struggling with differentiating between dimethyl and ethyl substituent groups. Example: tert-butyl (1,1-dimethylethyl) This …

  2. Why DMSO has much higher freezing point than DMF (19 °C vs

    Jul 3, 2024 · From Wikipedia, I found out that DMSO (dimethyl sulfoxide) has a freezing point of 19 °C (ref. 1) while DMF (dimethylformamide) has a freezing point of -61 °C (ref. 2)!

  3. What is the priority for numbering alkyl side chains?

    I'm wondering why the above image is named 5-ethyl-3,3-dimethylheptane rather than 3-ethyl-5,5-dimethylheptane. I thought an ethyl substituent has a higher priority (I know this is true when …

  4. Do we understand why Dimethyl Mercury is so toxic?

    Jun 13, 2023 · As related in the book titled “Ignition!”, by John Drury Clark, it was once proposed to fire up a test rocket engine using 100 pounds of dimethyl mercury reacting with red fuming …

  5. How does dimethyl sulfate react with water to produce methanol?

    I came across the reaction of dimethyl sulfate with water to yield methanol. I was curious how that works as $\\ce{H2O}$ isn't a strong nucleophile. From my understanding the $\\ce{H2O}$ …

  6. nomenclature - Priority of Alphabetic order vs Lowest locant ...

    Aug 5, 2022 · Lowest locant has the priority over alphabetical order while numbering. But when writing name, we write according to alphabetical order. So 4-ethyl-3,3-dimethylhexane is the …

  7. Difference in ozonolysis reagents - Chemistry Stack Exchange

    May 3, 2015 · What is the difference when following up ozonolysis with DMS (dimethyl sulfide), Zn/water, or just water? Or is there really no substantial difference at all? In my textbook, the …

  8. what is mechanism for reaction phenol + dimethylsulphate -> …

    Jun 14, 2019 · Dimethyl sulphate breaks the oh bond and forms anisole. How does the reaction proceed?? is it oxygen lone pair attacks on sulphur which has partial positive charge?? the …

  9. organic chemistry - Nomenclature - Common vs IUPAC Names …

    May 17, 2014 · No, 2,2-dimethyl-7- (1-methylethyl)bicyclo [3.2.0]heptane is not an acceptable name. Like the rule you quoted says, start numbering at a bridgehead carbon and first pass …

  10. Clarification on IUPAC nomencalture - Chemistry Stack Exchange

    Mar 25, 2018 · This is 1,6-dimethyl-cyclohexene. Why cannot this same structure have the IUPAC name 1,2-dimethyl-cyclohexene. In the given picture the locant sum comes to 7 but in my case …