Rings with More Than Six Members

Introduction of nitrogen atom into six-membered ring and formation of seven-member ed N-heterocycles 00T4317. 

Synthesis and chemical tranformations of 1,5-benzothiazepines 00JHC199. Synthesis and chemical transformations of 1,4-, 4,1-, and 1,5-benzoxazepines 01JHC1011. 

Metal-mediated synthesis of medium-sized heterocycles 00CRV2963. 

New synthetic methods for construction of medium-sized cyclic ethers and convergent coupling of polyether fragments 01YGK193. 

Synthesis of medium-sized heterocycles by the ring-closing metathesis reaction 00AG(E)2079. 

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A number of N-acyl derivatives of nitrogen heterocycles having rings with more than six members have been investigated from a conformational point of view. 

Rings with More than Six Members A. Seven-Membered Rings. . . ... 

Keywords Five-membered rings Four-membered rings Heterocycles containing unusual heteroatoms Rings with more than six members Six-membered rings Three-membered rings... 

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