Metallafurans and their synthetic chemistry  

作　　者：Guomei He Jiangxi Chen Haiping Xia 

机构地区：[1]Key Laboratory of High Performance Ceramic Fibers ofMinistry of Education, Department of Materials Science and Engineering, College of Materials, Xiamen University [2]State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University

出　　处：《Science Bulletin》2016年第6期430-442,共13页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China (21302158 and 21472156);the National Basic Research Program of China (2012CB821600)

摘　　要：Based on isolobal analogy,the definition of metallafuran was described and its synthetic chemistry was briefly summarized.In the structure of furan,when one of CH groups was replaced by an isolobal metal fragment ML n(M=metal;L=ligand),the corresponding organometallic complex was called metallafuran,which should be two possible isomers called a-metallafuran(metal fragment at a-carbon of original furan)and b-metallafuran(metal fragment at b-carbon of original furan).As an organometallic complex,a-metallafuran has two resonant forms:one can be viewed as carbonyl coordinated vinyl metal complex and the other can be viewed as alkoxymetal carbene.Therefore,a-metallafuran was also called chelated vinyl ketone metal complex or oxametallacyclopentadiene in the early literatures.For synthesis of metallafurans,a-metallafurans were very common and easily prepared,for example,from alkynes insertion into acyl metal complexes and so on.While there were rare examples reported for b-metallafurans.In this mini review,the synthetic chemistry of metallafuran was mainly focused on its formation mechanism.Based on isolobal analogy,the definition of metallafuran was described and its synthetic chemistry was briefly summarized.In the structure of furan,when one of CH groups was replaced by an isolobal metal fragment ML n（M=metal;L=ligand）,the corresponding organometallic complex was called metallafuran,which should be two possible isomers called a-metallafuran（metal fragment at a-carbon of original furan）and b-metallafuran（metal fragment at b-carbon of original furan）.As an organometallic complex,a-metallafuran has two resonant forms：one can be viewed as carbonyl coordinated vinyl metal complex and the other can be viewed as alkoxymetal carbene.Therefore,a-metallafuran was also called chelated vinyl ketone metal complex or oxametallacyclopentadiene in the early literatures.For synthesis of metallafurans,a-metallafurans were very common and easily prepared,for example,from alkynes insertion into acyl metal complexes and so on.While there were rare examples reported for b-metallafurans.In this mini review,the synthetic chemistry of metallafuran was mainly focused on its formation mechanism.

关 键 词：Metallafuran AROMATICITY Metallaaromatics SYNTHESIS MECHANISM 

分 类 号：O641.4[理学—物理化学] O621.3[理学—化学]