Hydroxyl acetates

The transformation of aldehydes (44) (R3 = H) and ketones (44) (R3 = Alkyl) to the corresponding a-hydroxylated acetals (45) has been performed in an MeOH-KOH/KI-(Pt/C) system. The first step of the oxidation is considered to proceed by the attack of an electrogenerated active iodine species [I]+ to an... 

Intermediate enols can also be oxidized by indirect electrosynthesis (vide supra) halide anions are used as oxidation mediators. A multistep reaction converts ketones into a-hydroxylated acetals when oxidized electrochemically in the presence of iodine as the redox catalyst (Scheme 48) [196],... 

Vinyl chloride has also been reacted with other monomers containing carboxyl, hydroxyl, acetate, maleate, and vinylidene groups. Some of these reactive groups permit cross-linking with other polymers such as alkyds and melamines. Typical solubility characteristics are shown in Figure 3. 

Acetyl, % Butsrryl, % Hydroxyl, % Acetate Butyrate Hydroxyl Application... 

An intercalation process under reflux conditions for 4 days has been performed by Ma et al. to prepare chromium oxide-pillared manganese oxides [38]. In this reaction chromium hydroxyl acetate clusters, Cr3(OAc)7(OH)2, are used as the pillaring species. Cr + self-polymerizes under reflux to form polynuclear clusters between the manganese oxide layers. Intercalation of this trinuclear chromium complex constitutes a challenge because redox reactions may occur between manganese oxide and the transition metal oxide during the process, which could destroy the layer structure. 

H Hydroxyl acetic Acid -e Hydroxyl acetic Acid... 

Among the biopolymers worked with for adsorption of metal ions, cellulose, chitin and the derivatives of chitin have played significant role in their capacity as adsorbent and complexing agent by virtue of their hydroxyl, acetate, amido and amino groups. 

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