合成体

The effects of ultraviolet irradiation on the accumulation of resveratrol and δ-viniferin as well as related enzymes in the pericarp of V. vinifera were studied in this paper.

摘 要：本文研究了紫外线辐射对酿酒葡萄品种蛇龙珠果皮中白藜芦醇及其二聚体合成的影响。

A new unsymmetrical Schiff base zwitterion was synthesized using L -lysine, salicylaldehyde and 2-hydroxy-l-naphthaldehyde.

L-赖氨酸与水杨醛、萘酚醛作用合成了一种不对称希夫碱配体C124H23O4N2Li。

By virtue of the coordination of Cr2L (L = CO; PPh3; C3H5 BF4-) with N-vinylcarbazole, acenaphthylene and their derivatives as organic ligands, a series of organometallic complexes have been synthesized. Their spectra characterization and X-ray diffraction analysis have been performed. It is found that this kind of complexes possesses an electronic structure with highly extensive π- delocalization.

以N－乙烯基咔唑、苊烯及其衍生物作为配体与金属基团Cr2L(L = CO； PPh3； C3H5 BF4-)配位，合成了一系金属有机配合物，并对其进行了光谱表征和单晶X射线衍射分析，发现该类配合物具有高度离域的电子结构。

The products obtained by reacting titanium butoxide with acetylacetone were used as the titanium precursor.

采用钛酸丁酯和乙酰丙酮作用后的产物作为钛的前驱体，水热法一步合成出了 Ti-SBA-15分子筛。

LacZ gene was fused with the promoter of the acoR gene and bkdR gene, and two recombined genes were expressed in sigL mutant strain and HD-73 wild strain sequentially.

分别将调控aco操纵子（编码3-羟基丁酮脱氢酶系统）的转录调节基因acoR和调控bkd操纵子（编码催化支链脂肪酸合成的酶系统）的转录调节基因bkdR的启动子与lacZ基因融合，并转入出发菌株和sigL突变体中，测定b-半乳糖苷酶的活性。

Acylamino compounds from AD were synthesized by cleavage of A-ring through NaIO4/KMnO4 oxidation, ring closure by amination, oximation with hydroxylaminechloride in C-17 position, and reduction of oxime in C-17 position and substitution with substituted acylchloride and carboxylic acids.

本文以AD为起始原料，经过NaIO4/KMnO4氧化裂解、胺解环合、羟氨肟化反应，在甾体17位形成肟，并将肟还原成胺，与取代酰氯和有机羧酸反应，合成了15个酰胺化合物。

While for the solution without urea, no combustion reaction took place and a badly agglomerated precursor was formed.

而没有添加尿素的溶液中没有燃烧反应发生，合成的前驱物为比表面积低的块状团聚体。

In general, TiO2 synthesis used precursors for the titanium alkoxide or titanium metal salt which are hydrolyzed and thermal treatment to obtain TiO2 crystals.

传统二氧化钛合成是利用含钛的金属烷氧化物或含钛的金属盐类为前驱体，加以水解及热处理。

A new series of the ligands of liquid crystal polymers with T-shaped two-dimensionl mesogens was synthesied by solution condensation polymerization by using 4,4'-(α,ω-alkylenedioyloxy)-dibenzol dichlorids with 2,4-dihydroxy-4 '-alkoxyl azobenzene as the monomers.

摘 要 以4，4′-二苯甲氯和2，4-二羟基-4′-烷氧基偶氮苯为单体，通过溶液聚合，合成了一系列新的含T-型二维液晶基元的液晶高分子配体。

A new series of the ligands of liquid crystal polymers with T-shaped two-dimensionl mesogens was synthesied by solution condensation polymerization by using 4,4'-(,-alkylenedioyloxy)-dibenzol dichlorids with 2,4-dihydroxy-4'-alkoxyl azobenzene as the monomers.

以4，4′-二苯甲酰氯和2，4-二羟基-4′-烷氧基偶氮苯为单体，通过溶液聚合，合成了一系列新的含T-型二维液晶基元的液晶高分子配体。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失