A General Approach to Optically Pure [5]-, [6]-, and [7]Heterohelicenes

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

WILEY-V C H VERLAG GMBH

1. Czech Science Foundation [203/09/1766, 203/09/1802]
2. Ministry of Education, Youth, and Sports of the Czech Republic [LC512, MSM0021620857, Kontakt ME09020]
3. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic [RVO 61388963]