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  2. Cyclopropyl group - Wikipedia

    en.wikipedia.org/wiki/Cyclopropyl_group

    A cyclopropyl group is a chemical structure derived from cyclopropane; it is typically produced in a cyclopropanation reaction. The group has an empirical formula of C 3 H 5 and chemical bonds from each of the three carbons to both of the other two.

  3. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    A cycloalkyl group is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula −C n H 2n−1. [2] Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group. The smallest alkyl group is methyl, with the formula −CH 3 ...

  4. Cyclopropanes - Wikipedia

    en.wikipedia.org/wiki/Cyclopropanes

    Most cyclopropanes are not prepared from the parent cyclopropane, which is somewhat inert. Cyclopropyl groups are often prepared by cyclization of 1,3-difunctional alkanes. An example of the former, cyclopropyl cyanide is prepared by the reaction of 4-chlorobutyronitrile with a strong base. [1]

  5. Sigmatropic reaction - Wikipedia

    en.wikipedia.org/wiki/Sigmatropic_reaction

    [11] [12] [13] This rearrangement is a useful carbon-carbon bond-forming reaction. An example of Claisen rearrangement is the [3,3] rearrangement of an allyl vinyl ether, which upon heating yields a γ,δ-unsaturated carbonyl. The formation of a carbonyl group makes this reaction, unlike other sigmatropic rearrangements, inherently irreversible.

  6. Propyl group - Wikipedia

    en.wikipedia.org/wiki/Propyl_group

    From left to right: the two isomeric groups propyl and 1-methylethyl (iPr or isopropyl), and the non-isomeric cyclopropyl group. In organic chemistry, a propyl group is a three-carbon alkyl substituent with chemical formula −CH 2 CH 2 CH 3 for the linear form.

  7. Minnie Driver Cheekily Asks If Everyone Is ‘Getting New Faces ...

    www.aol.com/minnie-driver-cheekily-asks-everyone...

    Minnie Driver knows how to get a conversation started.. Amid the growing number of celebrities candidly speaking about their cosmetic enhancements, The Assessment actress, 54, asked a series of ...

  8. Alkyl cycloalkane - Wikipedia

    en.wikipedia.org/wiki/Alkyl_cycloalkane

    Alkyl cycloalkanes are chemical compounds with an alkyl group with a single ring of carbons to which hydrogens are attached according to the formula C n H 2n . They are named analogously to their normal alkane counterpart of the same carbon count: methylcyclopropane , methylcyclobutane , methylcyclopentane , methylcyclohexane , etc. [ 1 ]

  9. Washington Post admits science behind puberty blockers and ...

    www.aol.com/news/washington-post-admits-science...

    The Washington Post argued in a new editorial that the benefits of gender-transition treatments for minors like puberty blockers have not been scientifically proven. "Treatment results that look ...