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Methoxystilbene and 2-methoxy-4'-nitrostilbene were synthesized from benzyl chloride and nitrobenzyl chloride by the Wittig reaction, and used as intermediates for the synthesis of the final product fluorescent whitener FP4,4'-bis(2-methoxystyrylbiphenyl via reduction and diazotisation of the latter followed by reaction with the former in the presence of NaOH.

以氯化苄和对硝基氯苄为原料，经Wittig反应合成中间体：2-甲氧基-二苯乙烯和2-甲氧基-4'-硝基-二苯乙烯。后者经还原反应、重氮化反应后，在氢氧化钠存在下与前者反应生成最终产品荧光增白剂FP4，4'-双-2-(甲氧基苯乙烯基联苯。为该类荧光增白剂的合成开辟了一条新路线

We have not found any reports that o-toluidine and N,N-dimethylaniline can be used as antiknock. The electrochemical properties of aromatic amine are in line with its' antidetonating quality and actual application.

而实际上采用胺类化合物作抗爆剂时，一般使用N-甲基苯胺、苯胺、邻甲苯胺及间甲苯胺，尚未见到使用对甲苯胺和N，N-二甲基苯胺的报道。

Notes on the Chinese Flea Beetles of the Genus Acrocrypta Baly Coleoptera, Chrysomelidae, Alticinae

球须跳甲属的中国种类鞘翅目，叶甲科，跳甲亚科

The rice water weevil Lissorhoptrus oryzophilus Kuschel, belongs to Erirhininae (Coleoptera: Curculionidae), and it is a dangerous quarantinable pest of rice.

稻水象甲Lissorhoptrus oryzophilus Kuschel属节肢动物门，昆虫纲，鞘翅目，象甲科，象甲亚科，稻水象属，是一种危害巨大的检疫性水稻害虫。

Essential drugs for standard topical treatment drugs include metronidazole,azelaic acid, and sodium sulfacetamide-sulfur. second line drugs include dibenzoyl peroxide, benzoyl peroxide,clindamycin,calcineurin inhibitors,and permethrin.

局部治疗红斑痤疮的基本药物有：甲硝唑，壬二酸，复方硫磺制剂；二线药物包括：过氧化二苯甲酰，过氧苯甲酰，克林霉素，钙神经蛋白抑制剂以及扑灭司林等。

Hydroxy-5, 10-dihydrophenophosphazine 10-oxide (1) reacted with SOCl2, and then with MeONa in MeOH to give a methyl phosphinate (2) which can be converted to a dinitro compound 3 (62%) by nitration and the resulting dinitro compound 3 can further be converted to 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide (4, 71%) by hydrogenation over Pd/C (w = 0.05). And the effect of amount of Pd/C (w = 0.05) on the reduction was also studied.

10－羟基－5，10－二氢磷杂吖嗪－10－氧化物（1）经醯氯化、甲基化得到10－甲氧基－5， 10－二氢磷杂吖嗪－10－氧化物（2），2经硝化得到10－甲氧基－2，8－二硝基－5，10－二氢磷杂吖嗪－10－氧化物（3，62%）。3在Pd／C（w = 0.05）存在下，用氢气还原为2，8二氨基－10－甲氧基－5，10－二氢磷杂吖嗪－10－氧化物（4，71%），考察了Pd／C（w = 0.05）用量对氢化还原反应的影响。

At 25℃, eggs hatched after 3.69±0.25 days, the nymph had three instars, the 1st instar stage was 3～5 days, 2nd instar 3～5days, and 3rd instar 4～5 days; The prepupal stage lasted 8～14 days and the pupal stage lasted 10～15 days at 25℃.

2黑广肩步甲成虫人工饲料研究分别研制了9种成虫人工饲料，以此饲喂黑广肩步甲成虫，结果表明，饲料Ⅲ是室内饲养黑广肩步甲成虫的最佳饲料。

Methods of eating metronidazole along with 20% for part of burn is recommended to be used in treatment. Key words: Metronidazole; 20% of silver nitrate; Recurrent stomatologist RAU

笔者于临床上用甲硝唑（又名灭滴灵、甲硝哒唑、甲硝基羟乙唑）内服配合局部用20%硝酸银溶液点灼，治疗阿弗他性口炎128例进行跟踪观察，收到较理想的效果，而临床上未见有资料报道。

A liquid chromatography-mass spectrometrymethod for determination of 15 anabolic steroids(17β-TS, PG, 17β-NT, MTS, PTS, PN, PNT, DIA, BOL, TRE, STA, TRA, MED, NOG, MPA) in animal urines was established. After the treatment of enzyme hydrolysis, the sample was cleaned up by C18 solid-phase extraction cartridges. The elution was evaporated under nitrogen and redissolved by acetontrile-water(1:1, by volume).

采用液相色谱－电喷雾串联质谱仪(LC-ESIMS/MS)，在多反应监测模式下建立了动物尿液中15种甾类同化激素（睾酮、孕酮、诺龙、甲基睾酮、丙酸睾酮、丙酸诺龙、苯丙酸诺龙、大力补、勃地龙、群勃龙、康力龙、醋酸群勃龙、甲炔诺酮、甲羟孕酮、醋酸甲羟孕酮）的快速确证测定方法。

Benzoyl chloride was treated with potassium selenocyanate in dichioromethane by using polyethylene glycal-400 as the solid-liquid phase transfer catalyst to yield the corresponding benzoyl isoselenocyanate. This intermediate did not need to be isolated and directly reacted with arylamines, affording the N-benzoyl-N'-arylselenoureas 2a~2p. These compounds were characterized by IR, 1H NMR spectra and elemental analysis and the single crystal structure of 2k has been confirmed by X-ray crystallographic analysis.

以PEG-400为固液相转移催化剂，通过苯甲酰氯与硒氰酸钾反应合成了中间体苯甲酰基异硒氰酸酯，该中间体不需分离，直接与芳胺反应，得到N-苯甲酰基－N'-芳基硒脲(2a~2p)，这些化合物用1H NMR，IR及元素分析进行了表徵，并用X射线单晶衍射确定了化合物2k的单晶结构。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。