Merck
CN
  • Synthesis of 2-nitroglycals from glycals using the tetrabutylammonium nitrate-trifluoroacetic anhydride-triethylamine reagent system and base-catalyzed Ferrier rearrangement of acetylated 2-nitroglycals.

Synthesis of 2-nitroglycals from glycals using the tetrabutylammonium nitrate-trifluoroacetic anhydride-triethylamine reagent system and base-catalyzed Ferrier rearrangement of acetylated 2-nitroglycals.

The Journal of organic chemistry (2013-08-13)
Suresh Dharuman, Preeti Gupta, Pavan K Kancharla, Yashwant D Vankar
摘要

A reagent system comprising tetrabutylammonium nitrate-trifluoroacetic anhydride-triethylamine has been developed for the synthesis of 2-nitroglycals from various protected glycals. The base-catalyzed Ferrier rearrangement on tri-O-acetylated 2-nitroglycals has been reported for the first time. Reactivity of these nitroacetates and associated selectivity has been examined, and some of the products have been converted into 2,3-diamino-2,3-dideoxyglycosides and methyl N-acetyl-D-lividosaminide.

材料
货号
品牌
产品描述

Sigma-Aldrich
三乙基胺, ≥99.5%
Sigma-Aldrich
三乙基胺, ≥99%
Sigma-Aldrich
三乙基胺, puriss. p.a., ≥99.5% (GC)
Sigma-Aldrich
四丁基氟化铵 溶液, 1.0 M in THF
Sigma-Aldrich
四丁基氢氧化铵 溶液, 40 wt. % in H2O
Sigma-Aldrich
四丁基氢氧化铵 溶液, 1.0 M in methanol
Supelco
四丁基氢氧化铵 溶液, ~40% in water, suitable for ion chromatography
Sigma-Aldrich
四丁基硫酸氢铵, 97%
Sigma-Aldrich
四丁基磷酸氢铵 一元, puriss., 99% (T)
Sigma-Aldrich
四丁基磷酸二氢铵 溶液, 1.0 M in H2O
Sigma-Aldrich
三氟乙酸酐, ReagentPlus®, ≥99%
Sigma-Aldrich
四丁基硫酸氢铵, puriss., ≥99.0% (T)
Sigma-Aldrich
四丁基溴化铵, ACS reagent, ≥98.0%
Sigma-Aldrich
四丁基氯化铵, ≥97.0% (NT)
Sigma-Aldrich
四丁基溴化铵, ReagentPlus®, ≥99.0%
Sigma-Aldrich
三乙基胺, BioUltra, ≥99.5% (GC)
Supelco
四丁基硫酸氢铵, suitable for ion pair chromatography, LiChropur, ≥99.0%
Sigma-Aldrich
三乙胺缓冲物质,用于生物化学 盐酸盐, ≥99.0% (AT)
Sigma-Aldrich
四丁基碘化铵, reagent grade, 98%
Supelco
四丁基高氯酸铵, for electrochemical analysis, ≥99.0%
Sigma-Aldrich
四丁基高氯酸铵, ≥95.0% (T)
Sigma-Aldrich
四丁基氢氧化铵 溶液, technical, ~40% in H2O (~1.5 M)
Supelco
三氟乙酸酐, for GC derivatization, LiChropur, ≥99.0% (GC)
Sigma-Aldrich
四丁基氰化铵, 95%
Supelco
四丁基溴化铵, suitable for ion pair chromatography, LiChropur, ≥99.0%
Sigma-Aldrich
四丁基碘化铵, ≥99.0% (AT)
Sigma-Aldrich
三乙基胺, for amino acid analysis, ≥99.5% (GC)
Sigma-Aldrich
四丁基硝酸铵, 97%
Sigma-Aldrich
四丁基氢氧化铵 溶液, 53.5-56.5% in H2O
Sigma-Aldrich
三乙基胺, for protein sequence analysis, ampule, ≥99.5% (GC)