The image depicts a chemical reaction mechanism commonly found in organic synthesis, possibly illustrating a Wittig reaction. Here is a transcribed and detailed explanation fit for an educational website:---### Reaction Mechanism Overview**Starting Material**:- The reaction begins with an unspecified substrate placed in a bounded rectangle marked by the number [3].**Reaction Steps**:1. **Reagents and Conditions**: - **PPh₃ (Triphenylphosphine), 1.0 equivalent**: This reagent is involved in the formation of a phosphonium ylide, a key intermediate in Wittig reactions. - **nBuLi (n-Butyllithium), 1.0 equivalent**: A strong base, n-Butyllithium, is used to deprotonate a phosphonium salt to form the corresponding ylide.2. **Mechanism**: - An arrow is shown directing from the starting material to the products, indicating the progression of the reaction. The addition of PPh₃ and nBuLi facilitates the conversion of the substrate.3. **Products**: - The structure on the right shows a cyclic compound with a double bond and a keto group, along with an alkyl chain. This product results from the reaction of the ylide with a carbonyl compound. - Additional by-products include **O=PPh₃ (Triphenylphosphine oxide)** and **LiBr (Lithium bromide)**.The entire setup corresponds to a typical preparation and reaction sequence, effectively illustrating principles of organophosphorus chemistry and practical aspects of synthetic methodology in organic chemistry.--- This mechanism is commonly featured in advanced organic chemistry courses and research settings, highlighting the utility and versatility of Wittig reactions in the synthesis of alkenes.

At first formation of phosphorus ylide using compound 1 and PP h3 in basic condition (BuL i).

Answered: 3 1. PPh3 (1.0 equiv), 2. nBuli (1.0…

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Chemistry

3 1. PPh3 (1.0 equiv), 2. nBuli (1.0 equiv) 3. 3 O=PPh3 + LiBr

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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