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CAS

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1084-78-2

(1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol is a chiral organic compound with the molecular formula C15H16O2. It is a diol, meaning it contains two hydroxyl (-OH) groups, and is characterized by its 1,2-diphenylpropane structure. (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol is a racemate, consisting of equal amounts of both R and S enantiomers, which are non-superimposable mirror images of each other. It is used in various chemical reactions and as an intermediate in the synthesis of pharmaceuticals and other organic compounds. Due to its chiral nature, it is important to consider the stereochemistry when using (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol in reactions, as it can lead to different products depending on the enantioselectivity of the reaction.

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  • 1084-78-2 Structure

  • Basic information

    1. Product Name: (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol
    2. Synonyms:
    3. CAS NO:1084-78-2
    4. Molecular Formula:
    5. Molecular Weight: 228.291
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1084-78-2.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol(CAS DataBase Reference)
    10. NIST Chemistry Reference: (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol(1084-78-2)
    11. EPA Substance Registry System: (1RS,2RS)-(+/-)-1,2-diphenyl-1,2-propandiol(1084-78-2)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 1084-78-2(Hazardous Substances Data)

1084-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1084-78-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,8 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1084-78:
(6*1)+(5*0)+(4*8)+(3*4)+(2*7)+(1*8)=72
72 % 10 = 2
So 1084-78-2 is a valid CAS Registry Number.

1084-78-2Relevant articles and documents

Hot water as a mild Bronsted acid catalyst in ring opening reactions of epoxides

Xu, Zhaobing,Qu, Jin

experimental part, p. 1718 - 1725 (2012/04/18)

Ring opening of extremely hydrophobic epoxides with water, amines, sodium azide and thiophenol was realized in the mixture solvent of water and 1, 4-dioxane under reflux condition. Hot water was believed to act as a mild Bronsted acid catalyst in the epoxide-opening reactions.

Anionic Zirconaoxiranes as Nucleophilic Aldehyde Equivalents. Application to Intermolecular Pinacol Cross Coupling

Askham, Fredric R.,Carroll, Kevin M.

, p. 7328 - 7329 (2007/10/02)

Selective intermolecular pinacol cross coupling is achieved by reaction of anionic zirconaoxiranes with aromatic aldehydes and ketones, thereby providing an efficient route to unsymmetrical vicinal diols.

Diastereomerically Pure 3-(Silyloxy)oxetanes by a Selective Paterno-Buechi Reaction

Bach, Thorsten,Joedicke, Kai

, p. 2457 - 2466 (2007/10/02)

Diastereomerically pure 3-oxetanes 3 were prepared in moderate to good yields (45-72percent) by the Paterno-Buechi reaction of silyl enol ethers 2 with benzaldehyde.The phorocycloaddition exhibits a high degree of regio- and diastereoselectivity.The substituents R in the silyl enol ether have been varied , and it was found that steric bulk is mainly responsible for enhanced selectivity (diastereoselectivity from 70:30 up to 95:5).The regiochemical control is perfect (regioselectivity > 95:5) except for silyl enol ether 2a (R = Me) in the case of which a 90:10 ratio of regioisomers was observed.Irradiation of the reaction mixture at lower temperature (-25 deg C) led to a further improvement of diastereoselectivity.The relative configuration of the products obtained was elucidated both by 1H-NMR spectroscopy and by chemical degradation.As a mechanistic hypothesis to explain the high observed diastereoselectivity we propose that the steric environment in the intermediate diradical 11 determines the stereoselectivity according to two possible reaction pathways, i.e. bond formation and retrocleavage. - Key Words: Paterno-Buechi reaction / Oxetanes / Diastereoselectivity / Enol silyl ethers / Photocycloaddition

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