So Hee Chung, Min Seok Cho, Jun Young Choi, Doo Won Kwon, Yong Hae Kim* Center for Molecular Design and Synthesis, Department of Chemistry, Korea Advanced Institute of Science and Technology, 373-1, Kusong Dong, Yusong Gu, Taejon, 305-701, Korea Fax +82-42-869- 5818; E-mail: kimyh@mail.kaist.ac.kr Received 7 May 2001 ... Abstract: Treatment of a-halomethyl b-keto esters with SmI2 af- forded their corresponding one-carbon expanded products ...