Cyclic Tetraorganotin Compounds

The cyclic tetraorganotin compounds summarized in Tables 265 through 266 are prepared by methods from the following scheme. 

Ill Synthesis of monocyclic derivatives with diorganotin dihalides and organotin trihalides RnSnX -n and  

---

UNSUBSTITUTED CYCLIC TETRAORGANOTIN COMPOUNDS All compounds are listed in Table 268. 

Table 265- Functionally Substituted Cyclic Tetraorganotin Compounds...

Unsymmetrically substituted, noncyclic Eq. (g) and cyclic" Eq. (h) organobor-anes, R2BR or RBRj, can be prepared by the reaction of organoboron halides with tetraorganotin compounds ... 

Listing of compounds with two tetraorganotin moieties bridged by a carbon chain continues in Table ll6. Cyclic tetraorganotin derivatives with two tin atoms in one ring system are listed in Chapter 2.6.k. 

Cyclic symmetric organotin compounds are listed in Chapter 7 1 Additional references to tetraorganotin derivatives are given in Chapters 8.1 and 9 ... 

---