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186422-62-8

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186422-62-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186422-62-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,4,2 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 186422-62:
(8*1)+(7*8)+(6*6)+(5*4)+(4*2)+(3*2)+(2*6)+(1*2)=148
148 % 10 = 8
So 186422-62-8 is a valid CAS Registry Number.

186422-62-8Downstream Products

186422-62-8Relevant articles and documents

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Geissman,T.A.,Waiss,A.C.

, p. 139 - 142 (1962)

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Synthesis of (R)- and (S)-3-(tert-butyldimethylsilyloxy)-1-pyrroline N- oxides - Chiral nitrones for synthesis of biologically active pyrrolidine derivative, Geissman-Waiss lactone

Murahashi, Shun-Ichi,Ohtake, Hiroaki,Imada, Yasushi

, p. 2765 - 2766 (2007/10/03)

Tungstate-catalyzed oxidation of O-tert-butyldimethylsilyl (O-TBDMS) protected (R)-3-hydroxypyrrolidine ((R)2), derived from trans-4-hydroxy-L- proline, gave O-TBDMS protected (R)-3-hydroxy-1-pyrroline N-oxide ((R)1), which is a new chiral precursor for the synthesis of Geissman-Waiss lactone. The enantiomeric nitrone (S)-1 was also prepared by the oxidation of (S)-2 derived from L-malic acid.

Cycloaddition Reaction of Cyclic Enecarbamates and Enamides With Ketenes. A Short and Efficient Synthesis of the Geissman-Waiss Lactone.

Faria, Antonio R. de,Matos, Carlos Roberto R.,Correia, Carlos Roque D.

, p. 27 - 30 (2007/10/02)

The synthesis of several 2-aza-bicycloheptan-6-ones has been achieved in a regiospecific manner through a cycloaddition reaction between five-membered cyclic enecarbamates and enamides and free ketenes.The synthetic potential of this new meth

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