Abstract
CONTENTS
I. Introduction 400
II. Synthesis of polyenes with the same substituents at the ends of the chain 400
III. Synthesis of polyenes with different substituents at the ends of the chain 406
IV. Some properties of polyenes 407
CONTENTS
I. Introduction 400
II. Synthesis of polyenes with the same substituents at the ends of the chain 400
III. Synthesis of polyenes with different substituents at the ends of the chain 406
IV. Some properties of polyenes 407