Dicyclopentadiene tert butylphenol resins can be synthesized from dicyclopentadiene and p tert butylphenol in presence of BF 3 Et 2O catalyst .

在 BF3-Et2O催化剂的存在下，用双环戊二烯 和 对 - 叔丁基苯酚为原料合成双环戊二烯 -叔丁基苯酚树脂 。

N - butanol > iso - butanol > tert - butanol > sec - butanol . In the different solvents n of each alcohol is larger in benzene than inp - xylene .

正丁醇＞异丁醇＞ 叔 丁醇≥仲丁醇 ；在不同溶剂中 ，醇在苯中的n比 对二甲苯为大。

Tert - Butyl phenolic curing resin was synthesized from p - ten - butylphenol and formaldehyde with methenamine as catalyst .

以六亚甲基四胺为催化剂，以对 叔 丁基苯酚和甲醛为原料，合成了叔丁酚醛硫化树脂 。

Methods : To adopt a new process to synthesis of α - bromo - iso - butyric acid - tert - butyl ester Results : To optimize the reaction conditions reduce the usage of bromine improve the operation environment and reduce the contamination of waste .

方法：采用新工艺合成α-溴代异丁酸 叔丁酯。结果：优化反应条件，减小了溴的用量，改善操作环境 ，减少了三废污染 。

Studies showed that α naphthol and non alkyl substituted phenol in ortho position of hydroxyl can promote sediment formation and β naphthol 2 di methyl cresol and 2 di tert butyl para cresol can restrain sediment formation .

结果表明，α - 萘酚和羟基 邻位有未被烷基取代的酚类能促使柴油氧化沉渣的形成 ，而β - 萘酚和受阻型酚类可抑制氧化沉渣的产生 。

Oxidation reaction of pinacolone is a key step of the synthesis of tert - leucine .

片呐酮氧化是制备 叔亮氨酸的关键步骤，该文研究了片呐酮 经过高锰酸钾氧化生成 α酮酸的反应 。

The results showed that when the reaction temperature was 75 ℃ catalyst content was 5 % and reaction time was 45 min the yield of 2 - tert - butyl-4-methylphenol was 91.5 % the conversion was 98.3 % and the selectivity was 93.7 % .

结果表明，在反应温度75℃，催化剂用量4%，反应时间45min时， 2- 叔 丁基 -4-甲基苯酚合成转化率达98.3%，产物收率为91.5% ，产物选择性为93.7% 。

According to the conductance results the reactions between 4 - tert - butyl - calix 4 w_250 arene and amines proceed in two steps . First a proton transfer from calixarene to amine .

电导测定表明在 乙腈溶液中脂肪胺与 对 叔 丁基杯4w_283芳烃间的反应分两步进行 ：首先胺从杯芳烃得到一个质子生成胺正离子和杯负离子，然后离子再进一步包合。

Ternary heterogeneous Azeotropic distillation of tert . - butyl alcohol - water-hexane is carried out on a φ 20 rectification device . Dehydrated tert .

在φ20精馏装置上进行 叔 丁醇水正己烷三元非均相恒沸精馏 ，获得了99.9%的无水叔丁醇 。

The results showed that tert - butylbenzene-based method was an efficient way to synthesize 4 - tert - butyl-iodobenzene with simpler procedures and lower cost compared to 4 - tert - butyl benzoic acid-based method .

研究表明 ， 叔 丁基苯方法比4-叔 丁基苯甲酸方法简单易行、成本低 。

Synthesis of ( 4 R 5R ) - 4 - ( N - methyl-hydroxyamino ) - 5 - ( tert - butyldiphenylsiloxymethyl ) - 3 ( 5H ) - furanone key intermediate for a series of nucleoside analogs was studied .

对一类核苷类似物的关键中间体&（4R ，5R）4（N甲基羟氨基）5（ 叔 丁基二苯基硅烷基）氧甲基 ]3二氢2（5H）呋喃酮的合成进行了研究 。