References
Main Paper on α-diazo ketone cycloproponation
Honma M.; Sawada T.; Fujisawa Y.; Utsugi M.; Watanabe H.; Umino A.; Matsumura T.; Hagihara T.; Takano M.; Nakada M. J. Am. Chem. Soc., 2003, 125, 2860–2861.
This paper attempts to modify the α-diazo ketone cycloproponation process to make it more enantioselective; a better yield of the product could thus be obtained. The paper outlines the addition of a sulfonyl group at the diazo carbon to obtain intramolecular cyclopropanation yields of up to 98%.
Related References
Taber D. F.; Sheth R. B.; Tian W. J. Org. Chem., 2009, 74, 2433-2437.
This paper cites the previous reference as an example of previous attempts at using the α-diazo ketone cycloproponation process.
Desimoni G.; Faita G.; Jørgensen K.A. Chem. Rev. 2006, 106, 3561-3651.
This paper uses the stereoselectivity proposed by the main reference to synthesize the product.
Takano M.; Umino A.; Nakada M. Org. Lett. 2004, 6, 4897-4900.
This author uses the main reference for the synthesis of one of the compounds used.
