芳香

In addition, ioding was found to be an efficient catalyst for the imino Diels-Alder reaction of N-arylimine and enol ethers and the reaction provided tertrahydroqinolines in good yields. One pot synthesis of tetrahydroqinolines from aldehyde, aniline and enol ethers was also achieved using iodine as the catalyst. The chemical yield of the"one pot"reaction was comparable with that obtained using preformed N-arylimine.

此外我们也发现碘能够有效地催化N-芳基亚胺与烯醇醚的Diels-Alder反应，以很高的化学收率得到了四氢喹啉衍生物，并且发现碘也能够直接催化芳香醛、苯胺、烯醇醚的三组分&一锅&反应，获得的化学产率与使用预制的N-芳基亚胺相当。

Thinking of his grandpa,no taller than himself, commanding tens of thousands of army men and sending imperatorial orders in his French voice with soil fragrance,he was suddenly filled with great strength and when he spoke now his French accent was also soaked with nobleness and prestige.

联想到爷爷曾以矮小身材指挥千军万马，用带着泥土芳香的法语发出威严的命令，他顿感自己的身体里同样充满了力量，讲话时的法国口音也带着几分高贵和威严。

The results indicated that excellent yields of bis(indol-3-yl)methanes were obtained when indoles reacted with aldehydes and cyclo-ketones catalyzed by 20 mol% DBSA in water.

结果表明：在20mol％的DBSA的催化作用下，吲哚与芳香醛、脂肪醛和脂环酮高产率得到相应的双吲哚衍生物。

A new fused polycyclic indoline compound was synthesized from aniline,with the key step of Pd-catalyzed tandem cyclization using hydroquinidine as the ligand and molecular oxygen as a green oxidant.

以芳香氨为原料，通过烯丙基化、重排、酰基化及钯催化的氧化环合反应合成了一种新的氮杂三环吲哚啉化合物，其结构经1H NMR，13C NMR，IR及HR-MS表征。

Higher lightintensity increased the content of aliphatic GS, however light supply has nosignificant effect on indolyl and aromatic GS, provided P supply was sufficient.

较强光照对脂肪族硫代葡萄糖苷的合成有促进作用；对吲哚族硫代葡萄糖苷和芳香族硫代葡萄糖苷则没有显著的影响。

That inerasable memory, the twisting knots in heart, are shaking down cold fragrance all the way along the faintly wind.

那些无法抹去的记忆，在心头纠缠打结，一路随缥缈的风，摇落柔中带冷的芳香。

However,they are generally insoluble and infusible in their fully imidized form,which would lead to processing difficulties;and this process of polyintermediate has several inherent problems such as emission of volatile byproducts(e.g.,H_2O)and storage instability etc.

然而，完全亚胺化的芳香族聚酰亚胺通常不溶不熔，难于加工，而采用聚酰胺酸中间体加工时，又存在储存稳定性差，加工过程中会产生可挥发小分子副产物(如；H_2O)等问题。

The features of molecular structure of aromatics, resins and asphaltenes were investigated by ruthenium-ion-catalyzed oxidation, where involatile acid products were methylated with excess diazomethaneether and volatile acids were esterified with phenacyl bromide.

利用钌离子催化氧化方法对大港减压渣油芳香分、胶质和庚烷沥青质进行了选择性降解，通过GC、GC-MS等分析手段对降解反应产物中一元正构脂肪酸、α，ω-二元正构脂肪酸和苯二～六元羧酸的含量和分布分别进行了定量分析。

We studied reactions of sulphoxide with aliphatic and aromatic 1,3-dicarbonyl compounds promoted by Cu2·H2O, 2,2′-biimidazole and iodobenzene diacetate, with the presence of K2CO3 as a base and DMSO a solvent.

我们以K2CO3作为碱，DMSO作为反应的溶剂，在二醋酸碘苯、Cu2·H2O、2，2′-联咪唑体系中，对脂肪族和芳香族的1，3-二羰基化合物和亚砜的反应进行了研究。

Thus,α,β-unsaturated ketones were prepared by base-catalized aldol condensation between substituted arylaldehydes and acetones. Using iodosobenzene diacetate as oxidants, the resulting α,β-unsaturated ketones will be transformed to β,γ-unsaturated carboxylic acid esters.

以不同取代的芳香醛跟丙酮缩合后可以得到α，β-不饱和酮，再用iodosobenzene diacetate做氧化剂氧化，可以成左卤o到β，γ-不饱和碳酸酯类化合物。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。