Examlex
Draw the mechanism of the Michael reaction between ethyl acetoacetate and hex-5-en-4-one.(The ethyl group is abbreviated as "Et.")
Punctuation Mark
Symbols used in writing to clarify meaning and indicate pauses, divisions, or the structure of sentences, such as commas, periods, or question marks.
Main Thought
The primary or most important idea expressed in a piece of writing or speech.
Enclose Matter
The act of including or enclosing documents, objects, or other materials within a letter or package.
Part Of Speech
A category into which words are placed based on their syntactic functions, such as noun, verb, adjective, etc.
Q4: Refer to Exhibit 23-5.This reaction is an
Q9: Which of the following types/classes of compounds
Q23: Within a crystallite,the polymer chains are held
Q27: Propose a synthesis for the following compound
Q28: Refer to Exhibit 26-4.Leu<sup>5</sup>-enkephalin is a pentapeptide
Q33: Which of the following can result in
Q36: NaH,then CH<sub>3</sub>I
Q36: Many word processing documents use _ character
Q57: Refer to Exhibit 25-12.Put a BOX around
Q87: A set of unified formats for fonts,colors,and