Cas 173397-81-4,(2R,2'R,2''R,3R,4S,6'S,6''S)-1-O,5-O-di-(tert-butyldiphenylsilyl)-3-O,4-O-(6,6'-dimethyl-3,3',4,4',5,5',6,6'-octahydro-2,2'-bi-2H-pyran-2,2'-diyl)-adonitol

173397-81-4

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Basic information

Product Name: (2R,2'R,2''R,3R,4S,6'S,6''S)-1-O,5-O-di-(tert-butyldiphenylsilyl)-3-O,4-O-(6,6'-dimethyl-3,3',4,4',5,5',6,6'-octahydro-2,2'-bi-2H-pyran-2,2'-diyl)-adonitol
Synonyms:
CAS NO:173397-81-4
Molecular Formula:
Molecular Weight: 823.23
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: (2R,2'R,2''R,3R,4S,6'S,6''S)-1-O,5-O-di-(tert-butyldiphenylsilyl)-3-O,4-O-(6,6'-dimethyl-3,3',4,4',5,5',6,6'-octahydro-2,2'-bi-2H-pyran-2,2'-diyl)-adonitol(CAS DataBase Reference)
NIST Chemistry Reference: (2R,2'R,2''R,3R,4S,6'S,6''S)-1-O,5-O-di-(tert-butyldiphenylsilyl)-3-O,4-O-(6,6'-dimethyl-3,3',4,4',5,5',6,6'-octahydro-2,2'-bi-2H-pyran-2,2'-diyl)-adonitol(173397-81-4)
EPA Substance Registry System: (2R,2'R,2''R,3R,4S,6'S,6''S)-1-O,5-O-di-(tert-butyldiphenylsilyl)-3-O,4-O-(6,6'-dimethyl-3,3',4,4',5,5',6,6'-octahydro-2,2'-bi-2H-pyran-2,2'-diyl)-adonitol(173397-81-4)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 173397-81-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 173397-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,3,9 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 173397-81:
(8*1)+(7*7)+(6*3)+(5*3)+(4*9)+(3*7)+(2*8)+(1*1)=164
164 % 10 = 4
So 173397-81-4 is a valid CAS Registry Number.

173397-81-4Upstream product

153594-99-1 <2S,2'S> 2,2'-dimethyl-3,3',4,4'-tetrahydro-6,6'-bi-2H-pyran

173397-81-4Downstream Products

173397-81-4Relevant academic research and scientific papers

Dispiroketals in Synthesis (Part 19): Dispiroketals as Enantioselective and Regioselective Protective Agents for Symmetric Cyclic and Acyclic Polyols.

Downham, Robert,Edwards, Paul J.,Entwistle, David A.,Hughes, Andrew B.,Kim, Kun Soo,Ley, Steven V.

, p. 2403 - 2440 (1995)

The enantioselective preparation of both enantiomers of a C2-symmetric diphenyl-bidihydropyran 3 and 4 is described.The application of enantiopure bi-dihydropyrans 1-4 towards the simultaneous enantioselective differentiation and regioselective protection of a range of cyclic and acyclic symmetrical polyols (23, 37, 43, 45, 54, 61 and 66) is investigated.Several deprotections utilising trifluoroacetic acid (TFA) and a transketalisation with acidic glycerol are presented.

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