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(2R,3R)-3-benzyloxy-1-tosyloxy-2-pentanol is a complex organic compound with the molecular formula C18H24O5S. It is a chiral molecule, meaning it has a non-superimposable mirror image, and it is characterized by its specific 2R,3R configuration. (2R,3R)-3-benzyloxy-1-tosyloxy-2-pentanol features a benzyloxy group at the 3-position, a tosyloxy group (tosylate, derived from toluene sulfonic acid) at the 1-position, and a hydroxyl group at the 2-position, all attached to a pentanol backbone. It is used in organic synthesis, particularly in the preparation of complex molecules and pharmaceuticals, due to its ability to serve as a protecting group for alcohols and its potential to be used in asymmetric synthesis. The compound's structure and properties make it a valuable intermediate in the synthesis of biologically active molecules and other specialty chemicals.

99945-80-9

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99945-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99945-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,4 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99945-80:
(7*9)+(6*9)+(5*9)+(4*4)+(3*5)+(2*8)+(1*0)=209
209 % 10 = 9
So 99945-80-9 is a valid CAS Registry Number.

99945-80-9Relevant academic research and scientific papers

Enantio- and Diastereocontrolled Synthesis of Chiral 1,2-Diol Derivatives from (R)-2,3-Di-O-isopropylideneglyceraldehyde: endo- and exo-Brevicomin

Mulzer, Johann,Angermann, Alfred,Muench, Winfried

, p. 825 - 838 (2007/10/02)

All four possible stereoisomers of the insect pheromone brevicomin have been prepared from (R)-2,3-di-O-isopropylideneglyceraldehyde (1) on stereocontrolled routes with ee more than 98-99percent.

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