Stepanova EV, Belyanin ML, Filimonov VD, Valiev RR, Gruner M, Rogachev V. The first example of a one-step synthesis of 2'-O-acetyl aryl-D-glucopyranosides.
Carbohydr Res 2015;
409:36-40. [PMID:
25950119 DOI:
10.1016/j.carres.2015.03.017]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 03/27/2015] [Accepted: 03/30/2015] [Indexed: 11/29/2022]
Abstract
A selective acidic system for partial deacetylation of phenolic d-glucopyranosides per-acetates has been developed that allows synthesis of the corresponding 2'-O-acetyl-D-glucosides. Many disadvantages of generally used methods for preparing such mono-acyl derivatives involving multistep procedures or the use of enzymes are avoided. The ion at m/z 289 in mass spectra of their TMS derivatives indicates a particular and characteristic fragmentation pattern of these 2'-O-acetyl derivatives of d-glucopyranosides. Quantum-chemical calculations applying B3LYP/TZVP level of theory revealed the stability of 2'-O-acetyl glucopyranoside if compare with 3'-, 4'- and 6'- O-acetyl glucopyanosides.
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