scholarly journals A Phosphonium Ylide as an Ionic Nucleophilic Catalyst for Primary Hydroxyl Group Selective Acylation of Diols

ACS Catalysis ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 6150-6154 ◽  
Author(s):  
Yasunori Toda ◽  
Tomoyuki Sakamoto ◽  
Yutaka Komiyama ◽  
Ayaka Kikuchi ◽  
Hiroyuki Suga
1952 ◽  
Vol 30 (9) ◽  
pp. 627-645 ◽  
Author(s):  
O. E. Edwards ◽  
Léo Marion

The ultraviolet spectra, basic strengths, and N-alkyl groups of the aconite alkaloids are discussed. Pyropseudaconine has been shown to contain a conjugated system. The formulation C19H19–2,(OH)3,(OCH3)4NC2H5 has been confirmed for lycoctonine. Study of its oxidation products has shown that lycoctonine has a methylene group adjacent to the nitrogen and a primary hydroxyl group. The two remaining hydroxyls have been shown to be vicinal, with one probably secondary and the other tertiary. A carbinolamine structure is suggested for hydroxylycoctonine. The new bases, isolycoctonine, desoxylycoctonine, and des-(oxymethylene)-lycoctonine are described.


2017 ◽  
Vol 17 (5) ◽  
pp. 122-128
Author(s):  
Z.P. Belousova ◽  
P.P. Purygin ◽  
A.P. Tyurin

Derivatives of D-galactose and D-glucose substituted for the primary hydroxyl group, which contain an aglycone azolylmethylphenyl fragments (for imidazole, 1,2,4-triazole, benzimidazole and benzotriazole) has been synthesized. Toprotect the secondary hydroxyl groups of monosaccharides acetyl and isopropylidene groups were used.


Polymer ◽  
2018 ◽  
Vol 153 ◽  
pp. 167-172
Author(s):  
Shuangbin Fu ◽  
Yusheng Qin ◽  
Lijun Qiao ◽  
Xianhong Wang ◽  
Fosong Wang

ChemInform ◽  
1987 ◽  
Vol 18 (11) ◽  
Author(s):  
O. I. GEVUS' ◽  
M. A. DIKII ◽  
V. A. PUCHIN

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