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In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula −C 4 H 9, derived from either of the two isomers (n-butane and isobutane) of butane. The isomer n -butane can connect in two ways, giving rise to two "-butyl" groups:
An alternative motivation theory to Maslow's hierarchy of needs is the motivator-hygiene (Herzberg's) theory. While Maslow's hierarchy implies the addition or removal of the same need stimuli will enhance or detract from the employee's satisfaction, Herzberg's findings indicate that factors garnering job satisfaction are separate from factors leading to poor job satisfaction and employee turnover.
The increased stability towards acidic hydrolysis and nucleophilic species allows for the TBDPS groups in a substrate to be retained while other silyl ethers are removed. The TMS group may easily be removed in the presence of a TBDPS group by reaction with TsOH. The group is even more resistant to acid hydrolysis than the bulky TIPS.
ExxonMobil is the largest producer of butyl rubber. [45] Infineum, a joint venture with Shell plc, is manufacturing and marketing crankcase lubricant additives, fuel additives , and specialty lubricant additives, as well as automatic transmission fluids , gear oils , and industrial oils.
2,4-Di-tert-butylphenol (2,4-DTBP) is a white solid with a phenolic odour.It is primarily used as a raw material for the production of several commercially important antioxidants and phenolic benzotriazole-type UV absorbers.
He was spotted eating at the restaurant by a customer who alerted a McDonald's employee, state police said. "These reviews violate our policies and have been removed," a Google spokesperson said ...
Hydroxybupropion is the most potent of the metabolites. It is formed via the "hydroxylation of the tert-butyl group" by CYP2B6 and is excreted renally. [20] C max values of hydroxybupropion are 4–7 times that of bupropion, while the exposure to hydroxybupropion is "10 fold" that of bupropion. Hydroxybupropion's elimination half-life is ...
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