enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Racemic mixture - Wikipedia

    en.wikipedia.org/wiki/Racemic_mixture

    A racemic mixture is denoted by the prefix (±)-or dl-(for sugars the prefix dl-may be used), indicating an equal (1:1) mixture of dextro and levo isomers. Also the prefix rac-(or racem-) or the symbols RS and SR (all in italic letters) are used. If the ratio is not 1:1 (or is not known), the prefix (+)/(−), d/l-or d/l-(with a slash) is used ...

  3. Syn and anti addition - Wikipedia

    en.wikipedia.org/wiki/Syn_and_anti_addition

    In organic chemistry, syn-and anti-addition are different ways in which substituent molecules can be added to an alkene (R 2 C=CR 2) or alkyne (RC≡CR). The concepts of syn and anti addition are used to characterize the different reactions of organic chemistry by reflecting the stereochemistry of the products in a reaction.

  4. Stereochemistry - Wikipedia

    en.wikipedia.org/wiki/Stereochemistry

    Stereochemistry, a subdiscipline of chemistry, studies the spatial arrangement of atoms that form the structure of molecules and their manipulation. [1] The study of stereochemistry focuses on the relationships between stereoisomers, which are defined as having the same molecular formula and sequence of bonded atoms (constitution) but differing in the geometric positioning of the atoms in space.

  5. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Nucleophilic addition - Wikipedia

    en.wikipedia.org/wiki/Nucleophilic_addition

    This type of reaction is also called a 1,2-nucleophilic addition. The stereochemistry of this type of nucleophilic attack is not an issue, when both alkyl substituents are dissimilar and there are not any other controlling issues such as chelation with a Lewis acid, the reaction product is a racemate. Addition reactions of this type are numerous.

  7. Absolute configuration - Wikipedia

    en.wikipedia.org/wiki/Absolute_configuration

    In chemistry, absolute configuration refers to the spatial arrangement of atoms within a molecular entity (or group) that is chiral, and its resultant stereochemical description. [1] Absolute configuration is typically relevant in organic molecules where carbon is bonded to four different substituents.

  8. Anomeric effect - Wikipedia

    en.wikipedia.org/wiki/Anomeric_effect

    The α- and β-anomers of D-glucopyranose.. In organic chemistry, the anomeric effect or Edward-Lemieux effect (after J. T. Edward and Raymond Lemieux) is a stereoelectronic effect that describes the tendency of heteroatomic substituents adjacent to a heteroatom within a cyclohexane ring to prefer the axial orientation instead of the less-hindered equatorial orientation that would be expected ...

  9. C H E L S E A G R E E N P U B L I S H I N G W H I T E R I V E ...

    images.huffingtonpost.com/2007-09-10-EOA...

    %PDF-1.5 %âãÏÓ 100 0 obj > endobj xref 100 62 0000000016 00000 n 0000002402 00000 n 0000002539 00000 n 0000001570 00000 n 0000002637 00000 n 0000002762 00000 n 0000003272 00000 n 0000003519 00000 n 0000003561 00000 n 0000004173 00000 n 0000005340 00000 n 0000005569 00000 n 0000005954 00000 n 0000006116 00000 n 0000006328 00000 n 0000006538 ...

  1. Related searches dl pair in stereochemistry of addition formula table of solutions 1

    stereochemistry wiki3d stereochemistry