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CAS

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1016985-82-2

(4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 1016985-82-2 Structure

  • Basic information

    1. Product Name: (4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol
    2. Synonyms: (4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol
    3. CAS NO:1016985-82-2
    4. Molecular Formula:
    5. Molecular Weight: 528.761
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1016985-82-2.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: (4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol(CAS DataBase Reference)
    10. NIST Chemistry Reference: (4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol(1016985-82-2)
    11. EPA Substance Registry System: (4R,5R)-5-benzyloxymethoxy-7-(4-methoxyphenylmethyloxy)-4-methyl-4-(triethylsiloxy)-2-heptynol(1016985-82-2)

  • 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: 1016985-82-2(Hazardous Substances Data)

1016985-82-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1016985-82-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,6,9,8 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1016985-82:
(9*1)+(8*0)+(7*1)+(6*6)+(5*9)+(4*8)+(3*5)+(2*8)+(1*2)=162
162 % 10 = 2
So 1016985-82-2 is a valid CAS Registry Number.

1016985-82-2Relevant articles and documents

Formal total synthesis of fostriecin by 1,4-asymmetric induction with an alkyne-cobalt complex

Hayashi, Yujiro,Yamaguchi, Hirofumi,Toyoshima, Maya,Okado, Kotaro,Toyo, Takumi,Shoji, Mitsuru

supporting information; experimental part, p. 10150 - 10159 (2010/11/20)

The synthesis of a protected dephosphofostriecin, and thereby a formal synthesis of fostriecin, has been accomplished. The synthetic challenges were the construction of four stereogenic centers and the conformationally labile cis-cis-trans-triene moiety. Previous total syntheses have employed at least two asymmetric reactions that required the use of an external chiral auxiliary. Although remote stereoinduction in a 1,4-relationship is considered difficult, we have developed a notable 1,4-asymmetric induction that utilizes an alkyne-cobalt complex for the control of C5 stereochemistry by the C8 stereogenic center. The stereochemistry at C11 was established by 1,3-asymmetric induction with a higherorder alkynyl-zinc reagent. Thus, only one asymmetric reaction requiring an external chiral auxiliary was employed in this route. The labile cis-cis-transtriene unit was constructed at a late stage of the synthesis by diastereoselective coupling of a dienyne and an aldehyde unit, followed by reduction.

Formal total synthesis of fostriecin via 1,4-asymmetric induction using cobalt-alkyne complex

Hayashi, Yujiro,Yamaguchi, Hirofumi,Toyoshima, Maya,Okado, Kotaro,Toyo, Takumi,Shoji, Mitsuru

supporting information; experimental part, p. 1405 - 1408 (2009/04/12)

(Chemical Equation Presented) The synthesis of a protected dephosphofostriecin, and thereby a formal synthesis of fostriecin, has been accomplished. Two of the four chiral centers are controlled by an external chiral auxiliary and the other two are synthesized stereoselectively, one by a novel 1,4-asymmetric induction using cobalt-alkyne complex, and the other by 1,3-asymmetric induction.

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