Okram Mukherjee Singh & Thokchom Prasanta Singh 
Versatile Precursors in Organic Synthesis [PDF ebook] 

This book elaborates on the synthesis of versatile precursors and their applications in organic synthesis through a systematic approach. It shows that understanding the chemical properties of different types of versatile building blocks is essential for the successful execution of organic synthesis. The text also discusses how a particular type of precursor is used in the preparation of different types of simple and complex organic compounds, depending on reaction conditions and other substrates.