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2005
C-C bond formation
O 0282
Dichloromethane as an Unusual Methylene Equivalent. A New Entry of Highly
and Selective Titanium—Methylene Complexes for Ester Methyl15- 053 Nucleophilic
enation. — The title method represents the first use of dichloromethane as a highly
nucleophilic methylene equivalent in methylenation of esters. The application of the
TiCl4-Mg promoted CH2 transfer to a variety of ester carbonyl groups illustrates the extraordinary reactivity of the titanium-methylene complex. — (YAN*, T.-H.; CHIEN,
C.-T.; TSAI, C.-C.; LIN, K.-W.; WU, Y.-H.; Org. Lett. 6 (2004) 26, 4965-4967; Dep.
Chem., Natl. Chung-Hsing Univ., Taichung 40227, Taiwan; Eng.) — Steudel
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