... Page 3. 678 LETTERS SYNLETT identical coupling conditions for a second time. ... 6. Takagi, K.; Sasaki, K.; Sakakibara, Y. Bull. Chem. Soc. ... 4. pp 833. 8. For previous Heck reactions on solid phase see: reference 3a) and a) Hiroshige, M.; Hauske, JR; Zhou, P. Tetrahedron Lett. ...