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132273-88-2

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132273-88-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132273-88-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,2,7 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 132273-88:
(8*1)+(7*3)+(6*2)+(5*2)+(4*7)+(3*3)+(2*8)+(1*8)=112
112 % 10 = 2
So 132273-88-2 is a valid CAS Registry Number.

132273-88-2Relevant articles and documents

Synthesis of enantiomerically pure α-substituted propargylic amines by reaction of organoaluminum reagents with oxazolidines

Blanchet,Bonin,Micouin,Husson

, p. 6423 - 6426 (2007/10/03)

Various oxazolidines prepared in two steps from (R)-phenylglycinol react at 0 °C with dialkylalkynylalane-triethylamine complexes in the presence of trimethylaluminum in high yield and diastereoselectivity. Enantiomerically pure primary α-substituted propargylamines can be easily obtained in two steps after removal of ferrocenylmethyl protective group under smooth acidic conditions and oxidative cleavage of the chiral appendage.

Asymmetric synthesis of α-amino phosphonic acids by diastereoselective addition of trimethyl phosphite onto chiral oxazolidines

Maury, Catherine,Gharbaoui, Tawfik,Royer, Jacques,Husson, Henri-Philippe

, p. 3687 - 3693 (2007/10/03)

A simple and general asymmetric synthesis of α-amino phosphonic acids is described. The method involves the highly selective addition of trialkyl phosphite onto various chiral oxazolidines. Oxazaphosphorinanes thus obtained with an excellent diastereoselectivity furnish the corresponding (S)-α-substituted amino phosphonic acids in good overall yields and high ee (77→97%) after simple deprotection.

The absolute configuration and stereoselective Grignard reaction of N-substituted 4-phenyl-1,3-oxazolidines

Takahashi,Hsieh,Higashiyama

, p. 2429 - 2434 (2007/10/02)

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