Cas 682356-34-9,1,4-Dibenzofurandione, 7-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-2-[(1-methylcyclohexyl)methyl]-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

682356-34-9

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Basic information

Product Name: 1,4-Dibenzofurandione, 7-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-2-[(1-methylcyclohexyl)methyl]-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
Synonyms:
CAS NO:682356-34-9
Molecular Formula: C42H49BO6Si
Molecular Weight: 688.744
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: 1,4-Dibenzofurandione, 7-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-2-[(1-methylcyclohexyl)methyl]-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-(CAS DataBase Reference)
NIST Chemistry Reference: 1,4-Dibenzofurandione, 7-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-2-[(1-methylcyclohexyl)methyl]-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-(682356-34-9)
EPA Substance Registry System: 1,4-Dibenzofurandione, 7-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-2-[(1-methylcyclohexyl)methyl]-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-(682356-34-9)

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: 682356-34-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 682356-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,3,5 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 682356-34:
(8*6)+(7*8)+(6*2)+(5*3)+(4*5)+(3*6)+(2*3)+(1*4)=179
179 % 10 = 9
So 682356-34-9 is a valid CAS Registry Number.

682356-34-9Upstream product

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682356-34-9Relevant academic research and scientific papers

Synthesis of dibenzofuran-1,4-diones using the D?tz benzannulation

Anderson, James C.,Denton, Ross M.,Hickin, H. Gwen,Wilson, Claire

, p. 2327 - 2335 (2007/10/03)

The chromium Fischer carbene complexes of benzofuran and benzothiophene have been prepared and can be used in D?tz benzannulations with alkynes for the regioselective and converg ent synthesis of dibenzofuran-1,4-dione heterocycles. The use of alkynylboronates led to model systems of the tricyclic ring system of popolohuanone E after oxidation. It would appear that the combination of alkynyl boronates with furan type Fischer carbene complexes leads to substantial amounts (～50%) of protodeboronated products.

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