The Organosiloxane of the present invention intramolecularly has the hydrolytic silicyl group and the acid anhydride group, and has the poly ether group according to needs, and can freely adjust the number of functional groups.雨宮 正博小野 猪智郎...
On the other hand, second substrate – deoxycholic acid was acetylated with acetic anhydride in pyridine and the resulting 3,12-diacetoxydeoxycholic acid was converted to its pentafluorophenyl active ester. The nucleoside-steroid conjugate was phosphitylation of the 3′-hydroxyl group. The 3′-...
Identify the functional group in the given compound. A. carboxylic anhydride B. carboxylic ester C. carboxylic acid D. amide What is the bonding functional group for methanol? Identify the functional group or type of molecule in the following: A) CH_3 OH B) CH_3 CHO C) CH_3 COCH_3 ...
169 When hydrazide 201 was treated with acetic anhydride and then dehydrated with phosphorus pentoxide, the product was oxadiazole 204.170 and this approach was expanded to include substituted oxadiazoles as well as benzimidazoles.171 When 207 was treated with the thiocarbonyl derivative of semi-...
↓ activated carbon ↓ sulfuric acid pumping vacuum concentration cation exchange anion exchange vacuum concentration decolorization filter finished product purification method: lactic acid has a strong hygroscopicity, concentrated partial lactic acid Acid anhydride, heating itself prone to esterification reaction...
For example, materials such as cellulose may be modified by reacting it with an acid chloride or acid anhydride including a hydrophobic acyl group, in the presence of a hindered base, such as tripentylamine, to attach the hydrophobic acyl groups to the hydroxyls on the cellulose, thereby to...
(II) ions from wastewater21,22,23. Similarly, thiol groups were studied against the removal of bivalent Pb, Ag and Hg ions from their aqueous systems24. Lately, anhydride group has been used for the immobilization of coexisting amino and acid groups on the surface of magnetic nanocore and ...
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A double-exponential approach was further elaborated using N,N′-Dicyclohexylcarbodiimide (DCC) as coupling agent to accomplish hydroxyfunctional dendrimers up to the fourth generation and in good overall yield.83 The use of anhydride-activated bis-MPA monomers for the synthesis of higher generation ...
4. The photoimageable composition of claim 1, wherein the thiol-functional resin is a reaction product of a cyclic anhydride and a β-hydroxy thiol-functional resin. 5. The photoimageable composition of claim 4, wherein the cyclic anhydride is selected from the group consisting of maleic, ...