@article { ISI:000280389500002,
	title = {Addition of a silyl ketene acetal to alpha,beta-unsaturated cyclic anhydrides},
	journal = {Synthetic Communications},
	volume = {40},
	number = {16},
	year = {2010},
	month = {JUL},
	pages = {PII 924771265},
	publisher = {TAYLOR \& FRANCIS INC},
	address = {325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA},
	abstract = {<p>Addition of [1-methoxy-2 methyl-1-propenyl)-oxy] trimethylsilane (MTS) to unsymmetrical ,-unsaturated cyclic anhydrides (namely, itaconic anhydride and citraconic anhydride) as well as symmetrical anhydrides (namely, maleic anhydride and 2,3-dimethylmaleic anhydride) was investigated. Itaconic anhydride isomerizes to citraconic anhydride in the presence of MTS. In the presence of Lewis acid catalysts (Yb(OTf)3/CH2Cl2), MTS adds to itaconic anhydride at room temperature in a 1,4-fashion. 1,2-Addition is the preferred pathway with both 2,3-dimethyl maleic anhydride and citraconic anhydride.</p>},
	keywords = {1, 2-Addition, 4-addition, cyclic anhydrides, Lewis acid, Silyl ketene acetal},
	issn = {0039-7911},
	doi = {10.1080/00397910903243815},
	author = {Gnaneshwar, Rudhramyna and Sivaram, Swaminathan}
}
