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135968-96-6

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135968-96-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135968-96-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,6 and 8 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 135968-96:
(8*1)+(7*3)+(6*5)+(5*9)+(4*6)+(3*8)+(2*9)+(1*6)=176
176 % 10 = 6
So 135968-96-6 is a valid CAS Registry Number.

135968-96-6Relevant articles and documents

Diastereoselective Synthesis of Adjacent P,C-Stereogenic β-N-Glycosidic Linked α-Aminophosphinates

Liu, Shuang,Li, Yuming,Yin, Zhiyu,Yu, Qiuli,Miao, Zhiwei

, p. 2481 - 2488 (2017/03/14)

The diastereoselective formation of adjacent P,C-stereogenic β-N-glycosidic linked α-aminophosphinates is developed in high yields via a phospha-Mannich reaction. The reaction was performed by employing (Rp)-O-(?)-menthyl H-phenylphosphinate and O-pivaloylated N-galactosylimine for double stereodifferentiation and BF3·Et2O as a promoter in THF. O-Pivaloylated N-galactosylphenyl imine 2 and (Rp)-O-(?)-menthyl H-phenylphosphinate 1 were converted to N-galactosyl α-aminoalkylphosphinate 3 with ratios of diastereomers up to 20:1. The synthetic method of the conversion provides a rapid access to adjacent P,C-stereogenic chiral α-aminophosphinates.

Stereoselective synthesis of α-amino(phenyl)methyl(phenyl)phosphinic acids with O-pivaloylated D-galactoslamine as chiral auxiliary

Wang, Yadan,Wang, Yangyun,Yu, Jipan,Miao, Zhiwei,Chen, Ruyu

supporting information; experimental part, p. 9290 - 9293 (2010/04/05)

Stereoselective synthesis of α-amino (phenyl)methyl(phenyl)phosphinic acids with O-pivaloylated D-galactosylamine as chiral auxiliary, was reported. 2 3 drops of acetic acid were added to a solution of amine 1 and aldehyde 2 in 2-propanol and the mixture was stirred at room temperature for about 0.5 h. A solution of N-galactosylaldimines 3 in THF was cooled to 0°C, and phosphinate 4 and SnCl4 were added. The mixture was stirred for 2 d at room temperature. The aqueous phase was extracted with CHCl3 and the organic layers were dried with anhydrous MgSO4, filtered, and concentrated in vacuo to yield the crude products. A solution of compound 5 in dry methanol was treated with freshly prepared solution of HCl. Then methanol was evaporated in vacuo and the remaining residue dissolved in 0.5 M HCl and extracted with pentane. The results revealed that AlCl3, SnCl 4, and BF3.OEt2 were able to promote the addition.

Diastereoselektive Strecker-Synthese von α-Aminonitrilen an Kohlenhydrat-Matrices

Kunz, Horst,Sager, Wilfried

, p. 595 - 597 (2007/10/02)

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