硫酰

Compostie effects between zinc dialkyldithiophosphate and succinimide in liquid paraffin were investigated, and the protecting films formed on iron surface by either of the two additives alone or their combination were studied with the aid of in situ dynamic temperature variation infrared spectroscopic technique.

研究了二烷基二硫代磷酸锌与丁二酰亚胺在液体石蜡中的复合效应，并对这2种添加剂单独使用或组合使用时在铁表面形成的保护膜进行了原位动态变温红外光谱分析，同时还与其它添加剂组合体系作了对比试验研究，探讨了二者产生复合效应的机理。

Zinc dialkyldithiophosphate succinimide friction reduction and antiwear performances synergistic effect adverse effect

中文关键词：二烷基二硫代磷酸锌，丁二酰亚胺，减摩抗磨性能，协同效应，对抗效应

MSMstands for Methyl Sulphonyl Methane – a naturally occurring organic sulphur compound that provides building blocks for the production of joint cartilage.

的MSM代表甲基磺酰甲烷-一种天然的有机硫化合物，提供积木生产关节软骨。

The ligand of the chiral Schiff base and acetylacetone vanadium are subjected to complexation in situ, hydrogen peroxide is taken as an oxidant, aryl alkyl thioether asymmetric oxidation reaction is catalyzed in a toluene or dichloromethane solution under low temperature or room temperature, enantioselectivity of chiral sulphoxide is 72 percent to 95 percent ee, and yield is 42 percent to 83 percent.

将上述手性西佛碱配体与乙酰丙酮氧钒原位络合，采用双氧水为氧化剂，在甲苯或二氯甲烷溶液中低温至室温下催化芳基烷基硫醚不对称氧化反应，手性亚砜的对映选择性为72％-95％ee，产率为42％-83％。

Twenty-eight new organophosphorus compounds were prepared by reaction of sodium thio- or dithiophosphates with α-chloroacylamides.

通过硫代磷酸酯钠盐同2-α-氯代乙酰氨基噻唑或其衍生物的缩合，合成了通式为Y(R=Me、Et、i-Pr；X=O、S；Y=H、NO_2、SCN、Cl、SEt)的新有机磷化合物28个。

In order to obtain versatile ulitity of host molecules, three new chiral calix [4] crown ethers containing aza, thio atoms bearing two chiral sites provided by -cysteine ester were synthesized by the condensation of calix [4] arene diacid dichloride with oligoethylene glycol bridged bis-amino acid methyl ester. All new compounds were characterized by NMR, MS and elemental analysis.

以-半胱氨酸为手性源，利用多甘醇二氯醚在碱性条件下对半胱氨酸巯基进行烷基化反应，成功地合成了多甘醇醚链桥联的半胱氨酸衍生物，醚化反应后，在高度稀释条件下与对叔丁基杯[4]芳烃二乙酰氯进行双功能基缩合反应成功地合成了新型的手性杯[4]含氮、硫杂冠醚，并利用〓H NMR、MS等谱图手段对其结构进行了表征。

The side chain of thioacetic acid has been sythesized from the material of acetic acid via four steps, then synthesized the key intermediate of 2-hydroxypenem via displacement, P〓induced cyclization and hydrolyzed reaction from the material of azetidinone.

以羟乙酸为原料，经四步反应合成了侧链化合物硫基取代的羟乙酸，发生取代反应导入到经七步合成的单环氮杂环丁酮中，然后发生酰化，Wittig诱导环化，水解等五步反应合成关键中间体2-羟甲基青霉烯。

Results Eleven compounds were obtained and identified as sarcodonin A, scabronine B, 3β-hydroxy-5α, 8a-epidioxyergosta-6, 22-dien,(22E, 24R)-ergosta-7, 22-diene-3β, 5α, 6β-triol,(22E, 24R)-ergosta-7, 22-diene-3β-ol, benzoic acid, 4-hydroxylben-zaldehyde, 4-monopropanoylbenzenediol, ethy1-β-D-glucopyranoside, thioacetic anhydride,(2S, 2'R, 3S, 4R)-2-(2-hydroxyoctadecanoylamino) docosane-1, 3, 4-triol.

结果共分离鉴定了11个化合物，分别是：sarcodonin A、scabronine B、3β羟－5α，5α-过氧麦角甾－6，22-二烯－3β-醇、(22E，24R)-麦角甾－7，22-二烯－3β，5α，6β三醇、(22E，24R)-麦角甾－7，22-二烯－3β-醇、苯甲酸、对羟基苯甲醛、对羟基苯甲酸乙酯、乙基－β-D-吡喃葡萄糖苷、硫代乙酸酐、（25，2'R，3S，4R）-2-（2-羟基－十八碳酰胺）二十二碳烷－l，3，4-三醇。

A new chelating fiber containing thioamide group is synthesized by cross-linking of polyacrylonitrile fiber with ethylene-dimine and following with chemical modification with sodium sulfide using DMF as solvent.

以腈纶纤维为起始原料，经乙二胺预交联后，以DMF作溶剂与硫化钠反应，合成了一种硫代酰胺功能基可达6.8mmol/g干纤维的螯合功能纤维，其对贵金属金、银离子具有良好的吸附性能。

Thioamide was refluxed with sodium hypophosphite and ppt-Ni prepared beforehand from NiCl〓·6H〓O and Zn powder in a mixture of dioxane and water to give amines in 60-98% yields (12 examples).

催化剂Ni-Zn是用氯化镍和锌粉反应制成，为合金型固体粉末，次磷酸钠作为氢供体，对12种硫代酰胺进行脱硫还原，收率60-98%。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。