与 «ACETOXYL»相关的英语书籍
在以下的参考文献中发现
acetoxyl的用法。与
acetoxyl相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Encyclopedia of Traditional Chinese Medicines - Molecular ...
Z)-xylopyranoside = 7872 (24Z)-12^-Acetoxylanosta-7,9(ll),24-trien-26-oic acid =
22168 22/í-Acetoxylantic acid = 3026 3/?-Acetoxyl-9,19-cyclolanost-24(£)-en-26-
oic acid = 462 l-(2-Acetoxyl-l,5-dihydroxy-cyclopent-3-enyl)-tridecan-l-one ...
Jiaju Zhou, Guirong Xie, Xinjian Yan, 2011
2
ADVANCES IN CARBOHYDRATE CHEMISTRY
Elimination of methoxyl is possible in only two ways, as CH30- or CHjOH, but
acetoxyl is eliminated in four ways, as CHsCO^H, CHSCOO, CHjCO-, or CH8==C
==O. The last is most characteristic of the unsaturated species formed by the ...
Melville L. Wolfrom, 1967
3
ADV IN CARBOHYDRATE CHEM & BIOCHEM
\O 110.6, 114.8”. The orientation of the linkage bonds is O-5 —C-1 -O-1 — C-3' =
-71°, C-1-O-1 -C-3'-C-4' = +145°. The torsion angle, O-5'-C-1 '—O-1'—C(=O), of
the 1-acetoxyl group is +83°. The distances of 139.0, 143.5, 133.1 pm agree ...
4
The Alkaloids: Chemistry and Pharmacology V38: Chemistry and ...
Two one-proton singlets at 8 5.23 and 6.18 could be assigned as protons
geminal to hydroxyl and acetoxyl groups, respectively. The position of the acetyl
group was determined by chemical means as follows. 0-Acetylsibiricine was
prepared ...
5
Organic Reaction Mechanisms, 1973 Reprint A
However, the 3B-ethoxycarbonyl group participates overwhelmingly by way of a
six-membered ring.89 Acetoxyl-6 participation is also involved in the BFg-
catalysed rearrangements of the l-acet0xy-3,4-ep0Xy-pentanes and -hexanes.90
...
6
Stereoselective Synthesis (Part K)
The 1H-NMR spectrum (CDCl3) showed a signal at 8 5.57 (1H, d, J=8 Hz) due to
the C-5 proton, indicating the insertion of an acetoxyl group at one of the benzylic
positions. It was shown that acetoxylation in compound (88) could be selective ...
7
The Journal of Biological Chemistry
were incubated with the purified enzyme, interesting selectivity in the hydrolysis
depending on the position of the acetoxyl group on the steroid was noted as
shown in Table III. Several conclusions can be drawn in relation to the enzyme ...
8
Strategies for Organic Drug Synthesis and Design
Treatment of that product with the azetidone (16-3) leads to the replacement of
the acetoxyl next to nitrogen, in this case with retention of the configuration (16-4)
. This result can be rationalized by assuming an initial loss of the acetoxyl to form
...
9
Taxol: Science and Applications
I3 Other examples include a group of four taxoids from A. spicata that have a
basic side chain at C-5 but are also oxygenated with a hydroxyl group or an
acetoxyl group at C-14.113 3. Taxoids with a C-5 Cinnamoyl Group The first
taxoids ...
10
Wood and Cellulosic Chemistry, Second Edition, Revised, and ...
Signal no, Spruce, ppm (intensity) Beech, ppm (intensity) Assignment 1 194.9
195.2 (161) a-CO and y-CHO in cinnamaldehyde 2 192.3 192.6 a-CHO 2a 179.5
178.8 3 171.4 (159) 171.7 (161) CO in primary acetoxyl 3a 170.5 (95) 171.0(161)
...
David N.-S. Hon, Nobuo Shiraishi, 2000
