Cas 175084-45-4,(R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ<sup>6</sup>-thia-4-aza-tricyclo[5.2.1.0<sup>1,5</sup>]dec-4-yl)-propan-1-one

175084-45-4

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Product Name: (R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-propan-1-one
Synonyms: (R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-propan-1-one
CAS NO:175084-45-4
Molecular Formula:
Molecular Weight: 637.956
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-propan-1-one(CAS DataBase Reference)
NIST Chemistry Reference: (R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-propan-1-one(175084-45-4)
EPA Substance Registry System: (R)-2-{(2S,5R)-5-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-tetrahydro-furan-2-yl}-1-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-propan-1-one(175084-45-4)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
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Hazardous Substances Data: 175084-45-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 175084-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,0,8 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 175084-45:
(8*1)+(7*7)+(6*5)+(5*0)+(4*8)+(3*4)+(2*4)+(1*5)=144
144 % 10 = 4
So 175084-45-4 is a valid CAS Registry Number.

175084-45-4Upstream product

175084-45-4Downstream Products

175084-46-5 methyl (2R,3S,6R,8S)-O-(tert-butyldiphenylsilyl)nonactate

175084-45-4Relevant academic research and scientific papers

Remote allylic silyloxy groups as stereocontrol elements in intramolecular oxymercurations of γ-hydroxyalkenes

Bratt, Katharina,Garavelas, Agatha,Perlmutter, Patrick,Westman, Gunnar

, p. 2109 - 2117 (1996)

The diastereoselectivity in intramolecular oxymercurations of γ-hydroxyalkenes bearing a remote allylic oxy substituent has been investigated. It was found that the best selectivity was obtained by employing a combination of (Z)-alkene geometry and a tert-butyldiphenylsilyl protecting group attached to the remote allylic oxygen as in 4a-g. Cyclization, using mercuric acetate in dichloromethane, of all the (Z)-alkenols gave the syn diastereomer, 5a-g, as the major product. For example, cyclization of 4b gave syn diastereomer 5b and anti diastereomer 6b in a ratio of 7:1. It was found that this ratio could be improved by replacing dichloromethane with acetonitrile. Under these conditions the ratio of 5b to 6b increased to 19:1. Cyclization of (E)-alkene 9 gave very poor diastereoselection. These syn-selective intramolecular oxymercurations were exploited in enantioselective syntheses of two diastereomers of methyl nonactate.

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