Media type: E-Article Title: Enantioselective Spirocyclopropanation of para-Quinone Methides Using Ammonium Ylides Contributor: Roiser, Lukas; Waser, Mario imprint: American Chemical Society (ACS), 2017 Published in: Organic Letters Language: English DOI: 10.1021/acs.orglett.7b00869 ISSN: 1523-7060; 1523-7052 Keywords: Organic Chemistry ; Physical and Theoretical Chemistry ; Biochemistry Origination: Footnote: