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3-Methylhexane is a branched hydrocarbon with two enantiomers. [2] It is one of the isomers of heptane . The molecule is chiral , and is one of the two isomers of heptane to have this property, the other being its structural isomer 2,3-dimethylpentane .
In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula CH 3 (whereas normal methane has the formula CH 4). In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many organic compounds. It is a very stable group in ...
3-Methylhexane This page was last edited on 16 May 2022, at 14:52 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
The group may be represented as −CH 2 − or >CH 2, where the '>' denotes the two bonds. This stands in contrast to a situation where the carbon atom is bound to the rest of the molecule by a double bond, which is preferably called a methylidene group, represented =CH 2. [2] Formerly the methylene name was used for both isomers.
A similar process can also be used to prevent self-condensation between two ketones. In this case, however, the base used needs to be more powerful. A common base used is Lithium diisopropyl amide (LDA). Here it is used in order to perform the crossed condensation between acetone and cyclohexanone. [3]
Threonine proteases use the amino acid threonine as their catalytic nucleophile. Unlike cysteine and serine, threonine is a secondary hydroxyl (i.e. has a methyl group). This methyl group greatly restricts the possible orientations of triad and substrate as the methyl clashes with either the enzyme backbone or histidine base. [2]
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry , alcohols and carboxylic acids contain one or more hydroxy groups.
The iPr-Turbo-Hauser base crystallizes as a dimeric amido bridged contact ion pair (CIP). [4] Due to the high steric demand of the TMP ligand the dimerization process is sterically hindered. This is why the TMP-Turbo-Hauser base crystallizes as a monomeric CIP. [5] In both structures LiCl coordinates to the magnesium amides.