百度试题 结果1 题目30 Which of the compounds shown have chiral carbon atoms?D1234OH QCH3CH3CH3OH CH3 A 1, 2, 3 and 4 B 1 and 4 only C 2 and 3 only D 2, 3 and 4 only 相关知识点: 试题来源: 解析 D 反馈 收藏
Gem-dihalides are those halides in which two halogen are bonded to the same carbon atom. Write the structures of the given compounds. So ,in option (a) and (c ) two halogen atoms are present on the same carbon atom and they are terme as gem dihali
To determine which of the given compounds are meso compounds, we need to follow a systematic approach based on the definition of meso compounds. Here’s a step-by-step solution:Step 1: Understand the Definition of Meso Compounds
Use of compounds or mixtures of compounds which have a chiral, orthogonal, more highly ordered smectic phase in the range of said phase as switching or indicating mediumChristian BahrGerd HeppkeDetlef LotzschHansRolf DubalClaus EscherDieter Ohlendorf...
Which of the following compounds are tertiary amines? ∙(CH3)2CHN(CH3)2∙CH3CH(CH3)N(CH2CH3)2∙CH3CH2CH2NHCH3∙CH3CH2CH2CH2CH2NH2 Amines: Amines are known as functional groups composed of nitrogen that bears a lone pair. Amines are also derivatives of ammonia in which hydrogen atom...
Meso CompoundsThough they contain chiral carbon atoms, meso compounds are optically inactive. This means that overall the compound is achiral. These compounds usually have a plane of symmetry within the molecule.Answer and Explanation: The first compound is not a meso compound. This compound ...
(+)-Limonene is the isomer that is found in oranges. And unsurprisingly it smells of oranges! The smell of (-)-limonene is similar to turpentine, although some people suggest it has a lemon like aroma. Most naturally occurring chiral compounds are found as a single optical isomer only. How...
A total of 1.19 million compounds were screened using frozen cells20 expressing the hLH-R, quantifying the changes in agonist-induced cAMP levels using the time-resolved fluorescence resonance energy transfer (TR-FRET) technology21., 22., 23. (see the Supporting Information for full details). ...
Compounds of formula (II) wherein V=W may exist as one of two enantiomeric forms ((R) or (S)) or as a mixture of the two forms in any proportions. Where the absolute chiralities of the enantiomeric forms are unknown, each may be identified in terms of its optical rotation as either...
The invention relates to compounds of the formula ##STR1## wherein Y and Y' are hydrogen or taken together are O or S, *A is paraphenylene or *---(CH2)n --(X)s --(CH2)r ---, X is O, S or --CH CH--, n or r, independently, are integers from 0 to 3, m is an i...