樟脑

17 Indicate the chiral C's in camphor Explain why only one racemic form is known.

答：指出樟脑中的手性碳，并说明为什么只能形成一种外消旋体

This could be a fascinating method for the practical syntheses of chiral synthons as valuable building blocks and important medicinal intermediates.3.Series of novel optical pureγ-aryl-1H-1,2,4-triazole derivatives were designed and synthesized by using the chiral auxiliary(Oppolzer\'s sultam),and all these target compounds were structurally characterized by ~1H NMR,~(13)C NMR,MS and elemental analysis,at the same time,some representative compounds have been elucidated by X-ray diffraction analysis.

应用手性辅剂樟脑磺内酰胺的手性诱导作用，设计合成了一系列光学纯的γ-芳基-1H-1，2，4-三唑类衍生物，所有目标化合物都采用了~1H NMR、~(13)C NMR、MS和元素分析进行了结构表征，同时也获得了部分代表性化合物的晶体结构，进一步确证了化合物的结构。

Whereafter,we achieved a highly enantioselective approach towards the synthesis ofβ-substituted chiral ketones utilizing Oppolzer\'s sultam as chiral auxiliary.The-and-enantiomer of target chiral ketones were obtained with up to 99%ee.

应用手性辅剂樟脑磺内酰胺的手性诱导作用，高对映选择性地合成了一系列β-芳基取代手性酮，其ee值高达99%，可用于药物及其它精细化工中间体的不对称合成。3。

Yellow Submarine' while preserving overall quality, the effects of silver thiosulphate,naphthalene acetic acid, gibberellin and benzyladenine were investigated.

黄色潜水艇'，同时维护整体素质，影响硫代银，樟脑，乙酸， 920 ( 2274 )和苄进行了调查。

As plenty of water is one of the greatest additions to the delights of the Bedouin Arab, the Koran often speaks of the rivers of Paradise as a principal ornament thereof; some of these streams flow with water, some with wine and others with honey, besides many other lesser springs and fountains, whose pebbles are rubies and emeralds, while their earth consists of camphor, their beds of musk, and their sides of saffron. But all these glories will be eclipsed by the resplendent and ravishing girls, or houris, of Paradise, the enjoyment of whose company will be the principal felicity of the faithful. These maidens are created not of clay, as in the case of mortal women, but of pure musk, and free from all natural impurities, defects, and inconveniences.

由于大量的水是其中一个最大的增补了愉悦的贝都因阿拉伯人，可兰经常讲，河流的天堂，作为一个主要饰品；部分这些溪流流的水，一些与葡萄酒及其他与蜂蜜，此外，许多规模较小的泉水和喷泉，其卵石是红宝石和祖母绿，而在地球上构成的樟脑，其病床的麝香，其两岸的藏红花，但所有这些辉煌，将相形见绌了灿烂和ravishing女孩，或houris ，天堂，享受其公司将成为主要的幸福的忠诚，这些少女都是造成不粘土，情况一如凡人，妇女，但单纯的麝香，不受任何自然杂质，缺陷，和不便。

MOST recession-blighted manufacturers worry that their next order is likely to be for mothballs.

受经济萧条影响，大多数制造商们都在琢磨下回是不是要订樟脑球了。

It was apparently that this double-breasted suit was a new one. It seems that it was kept with mothballs in old uncle Henry's flat suitcase for many years.

厚厚的黑色羊绒柔软而蓬松，这件双排扣暗钮长大衣显然还没上过身，看样子，就像用樟脑球在老亨利叔叔的扁平旅行箱里保存了多年。

A tux that hasn't been fashionably tweaked is like a suit from the 1970s: a back-lot costume redolent of mothballs and better times.

一套没按流行样式拿边儿的tux就像来自上世纪70年代的西装：片场的戏服，散发出樟脑球和昔日好时光的气味。

The water based formula with camphor, menthol and eucalyptus tingles and refreshes skin, leaving it feeling clean, soft and smooth.

水基配方的樟脑，薄荷和桉树tingles和刷新皮肤，让它感觉干净，柔软，光滑。

Camphor oil has recently been evaluated for its effectiveness in treating demodicoses that often occur with rosacea.

樟脑油对常常出现在酒糟鼻中螨虫治疗有效。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。