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相关概念视频

Oxidative Cleavage of Alkenes: Ozonolysis01:46

Oxidative Cleavage of Alkenes: Ozonolysis

In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Protection of Alcohols02:31

Protection of Alcohols

This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
Protecting Groups for Aldehydes and Ketones: Introduction01:23

Protecting Groups for Aldehydes and Ketones: Introduction

Protecting groups are compounds that can bind to a specific functional group in the presence of other functional groups to protect them from undesired chemical reactions. These compounds can selectively bind to particular functional groups and advance chemoselective reactions in polyfunctional systems (Figure 1). After the functional group has served its purpose, it is removed by reacting it with specific compounds.
Methods of Sterilization II: Chemical Methods01:30

Methods of Sterilization II: Chemical Methods

In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Phase I Oxidative Reactions: Overview01:19

Phase I Oxidative Reactions: Overview

Phase I biotransformation, or functionalization, is a crucial chemical process that converts drugs and other xenobiotics into more water-soluble forms, facilitating expulsion from the body. It involves oxidative, reductive, and hydrolytic reactions that add or unveil polar functional groups on lipophilic substrates. Key players in phase I reactions are the mixed-function oxidases. Situated in liver cell microsomes, these enzymes predominantly carry out drug metabolism. They require molecular...

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相关实验视频

Updated: Jul 6, 2026

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
15:22

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization

Published on: April 3, 2014

固体相寡氧核酸合成:使用过氧离子离子去保护的两步循环.

Agnieszka B Sierzchala1, Douglas J Dellinger, Jason R Betley

  • 1Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, USA.

Journal of the American Chemical Society
|October 30, 2003
PubMed
概括
此摘要是机器生成的。

一种新的2步合成方法简化了Oligodeoxynucleotides的DNA合成. 这种方法使用了新的保护组和独特的试剂来有效合和氧化,产生高质量的DNA链.

更多相关视频

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

相关实验视频

Last Updated: Jul 6, 2026

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
15:22

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization

Published on: April 3, 2014

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

科学领域:

  • 氧核酸合成的合成方法
  • 有机化学 有机化学
  • 生物化学 生物化学

背景情况:

  • 固相合成对于创建DNA和RNA链至关重要.
  • 传统方法涉及多个步骤和保护群体,这可能是低效的.
  • 优化合成协议对于推进分子生物学和治疗学至关重要.

研究的目的:

  • 开发一种新的,高效的两步固相合成方法,用于小氧化核酸.
  • 引入修改后的保护组,以促进简化合成周期.
  • 为了使在Oligodeoxynucleotide合成中的同时降解保护和氧化.

主要方法:

  • 开发了一种基于酸的固相合成方法.
  • 取代了标准的5'-dimethoxytrityl组,用一个阿里洛西卡博尼尔保护组.
  • 使用N-dimethoxytrityl保护用于腺素和细胞因子的外循环胺.
  • 采用水性过氧离子离子混合物用于同时降解保护和酸盐氧化.

主要成果:

  • 实现了对寡度氧核酸的简化两步合成循环.
  • 这种新的方法有效地去除碳酸盐保护组.
  • 同时氧化了酸盐核体间链接.
  • 合成的寡氧氧核酸在分析上与真实样本完全相同.

结论:

  • 这种新的两步合成方法为寡度氧核酸生产提供了一个有效的替代方案.
  • 修改后的保护组策略简化了合成过程.
  • 这种方法可以产生高质量的寡度氧核酸,适合各种应用.