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25594-22-3

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25594-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25594-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,9 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25594-22:
(7*2)+(6*5)+(5*5)+(4*9)+(3*4)+(2*2)+(1*2)=123
123 % 10 = 3
So 25594-22-3 is a valid CAS Registry Number.

25594-22-3Downstream Products

25594-22-3Relevant articles and documents

The preparation of optically active 2-cyclopenten-1,4-diol derivatives from furfuryl alcohol

Curran, Timothy T.,Hay, David A.,Koegel, Christopher P.,Evans, Jonathan C.

, p. 1983 - 2004 (2007/10/03)

The preparation and enzymatic resolution of several cis-mono-4-O-protected-2-cyclopenten-1,4-diols are described. The process starts with inexpensive furfuryl alcohol and lends itself to the preparation of multigram quantities of various protected, optically active 2-cyclopenten-1,4-diol derivatives. Stereoselective reduction of 4-O-protected-2-cyclopentenone to the cis-mono-O-protected-2-cyclopenten-1,4-diol using LiAlH4/LiI or Red-Al/NaI is described. Subsequent pancreatin-promoted, stereoselective acylation was conducted on these cis-(+/-)-mono-O-protected-cyclopenten-1,4-diols to afford the corresponding alcohols and acetates in moderate to excellent enantioselectivities.

AN EFFICIENT SYNTHESIS OF cis-OXABICYCLOOCT-6-EN-3-ONE

Takano, Seiichi,Kasahara, Chiyoshi,Ogasawara, Kunio

, p. 605 - 608 (2007/10/02)

An efficient synthesis of a prostaglandin synthon (+/-)-cis-oxabicyclooct-6-en-3-one (1) has been developed using cyclopentadiene (2) as starting material.Employing the same methodology optically active (1) is also synthesized in low optical purity.

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