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131141-46-3

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131141-46-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131141-46-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,4 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131141-46:
(8*1)+(7*3)+(6*1)+(5*1)+(4*4)+(3*1)+(2*4)+(1*6)=73
73 % 10 = 3
So 131141-46-3 is a valid CAS Registry Number.

131141-46-3Relevant academic research and scientific papers

A highly stereoselective conversion of α-allenic alcohols to syn-1,2-diol derivatives

Friesen, Richard W.,Giroux, Andre

, p. 1867 - 1870 (1993)

α-Allenic alcohols 4 are converted with high diastereoselectivity via an iodocyclization process into the syn-1,2-diol derivatives 10.

Iodocyclization of the (Tolylsulfonyl)- and (Trichloroacetyl)carbamates of Secondary α-Allenic Alcohols. Highly Diastereoselective Synthesis of syn-1,2-Amino Alcohols and trans-5-Alkyl-1-oxo-2-oxazolidine-4-carboxylic Acids

Friesen, Richard W.,Kolaczewska, Aleksandra E.

, p. 4888 - 4895 (2007/10/02)

The iodocyclization of tosyl- and (trichloroacetyl)carbamates 9 and 10, respectively, of secondary α-allenic alcohols is described.The cyclofunctionalization reactions are highly diastereoselective, providing trans-5-alkyl-4-(1-iodoethylene)-2-oxazolidino

A HIGHLY STEREOSELECTIVE CONVERSION OF α-ALLENIC ALCOHOLS TO 1,2-SYN AMINO ALCOHOL DERIVATIVES VIA IODOCARBAMATION

Friesen, Richard W.

, p. 4249 - 4252 (2007/10/02)

The iodocarbamation of α-allenic alcohol O-carbamates is described.Reactions carried out in anhydrous Et2O are highly diastereoselective, providing the cyclic carbamates trans-8 and cis-9 in ratios ranging from 21:1 to >99:1.Hydrolysis and acetylation pr

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