It was found that under a neutral condition,the reaction of heterocyclic ketene aminals and ethyl bromo-acetate could give four new heterocyclic products:4a,4b,5a,5b with excellent yields.

Owing to the special structure and high reactivity of 2-(benzo[d]thiazole-2-yl)- acetonitrile andβ-(2-chloroaroyl)-heterocyclic ketene aminals, we herein developed an excellent strategy for for the synthesis of 4H-benzo[b]pyrans, tetrahydroimidazo -[1,2-a]pyridines and 1,8-naphthyridines derivatives.

The structure of heterocyclic ketene aminals is peculiar and notable which possesses a large conjugation system in its molecule.

Synthesis and characterization of the derivatives of 1,8-naphthalimides containing thiadiazole heterocycle;

Theoretical design of high-spin biradical molecules with heterocycles as end groups;

The design of novel biradicals with high spin ground state possessing heterocycles;

Studies on the Acylaminothiosemicarbazides and the Related Heterocyclic Derivatives(ⅩⅩⅤ)——Synthesis of 1-(2,4-dichIorophenoxylacetyl)-4-aroylthiosemicarbazides and Studies on Its cyclization Behavior Under Basic Catalysis;

Study on N-heterocyclic carbene iron complex;

Research progress of aromatic polyamides containing heterocyclic

The research progress on carbonylation reactions of heterocycles (such as epoxides and aziridines) during the last 40 years is reviewed in the presence of transition metal complex catalysts.