, HRMS (ESI) m/z calcd for

, After column chromatography using with cyclohexane as eluent, compound 6b was obtained as a yellow solid (38 mg, 55%)

. Mhz,

C. , After column chromatography using cyclohexane as eluent, compound 6c was obtained as a yellow solid (13 mg, 30%); mp: 161-163°C; 1 H-NMR (400 MHz, MHz, vol.128, issue.100

, This compound was prepared from 4d (50 mg, 0.15 mmol) and InCl 3 (99 mg, 0.45 mmol, 3 eq). After column chromatography with (cyclohexane/ethyl acetate, 80/20) as eluent, compound 6d was obtained as an orange solid (41 mg, 80%), HRMS (APCI) m/z calcd for, vol.mp, pp.191-192

, After the addition, the reaction mixture was allowed to reach room temperature, and was stirred for further 30 minutes. The volatiles were removed in vacuo and the residue was triturated in diethylether and finally recovered by filtration. 6-phenyl-1-(phenylethynyl)pyrrolo[1,2-a, CDCl 3 ) ? 7.19 (s, 2H), 7.29 (s, 2H), 7.53 (m, 6H), 7.79 (m, 4H), vol.8

C. , MHz, issue.100

, Compound 6d?H + was obtained as a brown solid (57 mg, 80%); mp: 252-254°C; 1 HNMR (400 MHz, HRMS (ESI) m/z calcd for

. Mhz,

M. Watanabe, K. Chen, Y. J. Chang, and T. J. Chow, Acc. Chem. Res, vol.46, pp.1606-1615, 2013.

J. Wu, W. Pisula, and K. Müllen, Chem. Rev, vol.107, pp.718-747, 2007.

J. E. Anthony, Chem. Rev, vol.106, pp.5028-5048, 2006.

C. B. Nielsen, T. Brock-nannestad, T. K. Reenberg, P. Hammershøj, J. B. Christensen et al., Chem. Eur. J, vol.16, pp.13030-13034, 2010.

S. Papadopoulos, D. Couris, and . Bonifazi, Chem. Eur. J, vol.23, pp.2363-2378, 2017.

A. Escande, M. J. Ingleson-;-b)-v, J. G. Hertz, M. Massoth, H. Bolte et al., Some selected examples, Chem. Commun, vol.51, pp.13181-13188, 2015.

Q. Xiao, T. Sakurai, T. Fukino, K. Akaike, Y. Honsho et al.,

J. Aida, ). L. Am, K. S. Chen, S. R. Mali, M. Puniredd et al., J. Am. Chem. Soc, vol.135, pp.10351-10355, 2013.

P. Bouit, A. Escande, R. Sz?cs, D. Szieberth, C. Lescop et al., Some selected examples: (a), vol.134, pp.1896-1903, 2012.

J. Wei, B. Han, Q. Guo, X. Shi, W. Wang et al., Some selected examples: (a), Angew. Chem. Int. Ed, vol.49, pp.8209-8213, 2010.

R. Berger, A. Giannakopoulos, P. Ravat, M. Wagner, D. Beljonne et al., Angew. Chem. Int. Ed, vol.53, pp.7409-7413, 2014.

S. M. Draper, D. J. Gregg, E. R. Schofield, W. R. Browne, M. Duati et al., J. Am. Chem. Soc, vol.126, pp.8694-8701, 2004.

H. Balli and M. Zeller, Helv. Chim. Acta, vol.66, pp.2135-2139, 1983.

K. Kanno, Y. Liu, A. Iesato, K. Nakajima, and T. Takahashi, Org. Lett, vol.7, pp.5453-5456, 2005.

J. Zhou, W. Yang, B. Wang, and H. Ren, Angew. Chem. Int. Ed, vol.51, pp.12293-12297, 2012.

J. H. Delcamp, A. Yella, T. W. Holcombe, M. K. Nazeeruddin, and M. Grätzel, Angew. Chem. Int. Ed, vol.52, pp.376-380, 2013.

A. Das, I. Ghosh, and B. König, Chem. Commun, vol.52, pp.8695-8698, 2016.

D. Wan, X. Li, R. Jiang, B. Feng, J. Lan et al., Org. Lett, vol.18, pp.2876-2879, 2016.

S. Ito, Y. Tokimaru, and K. Nozaki, Chem. Commun, vol.51, pp.221-224, 2015.

R. Berger, M. Wagner, X. Feng, and K. Müllen, Chem. Sci, vol.6, pp.436-441, 2015.

S. Boldt, S. Parpart, A. Villinger, P. Ehlers, and P. Langer, Angew. Chem. Int. Ed, vol.56, pp.4575-4578, 2017.

M. A. Wilson, G. Filzen, and G. S. Welmaker, Tetrahedron Lett, vol.50, pp.4807-4809, 2009.

A. Fürstner and V. Mamane, J. Org. Chem, vol.67, pp.6264-6267, 2002.

U. Nygaard, J. T. Nielsen, J. Kirchheiner, and J. Mol, Structure, vol.3, pp.491-506, 1969.

). Chai and M. Head-gordon, Phys. Chem. Chem. Phys, vol.10, pp.119-125, 2008.

M. Irie, T. Kamijo, M. Alkawa, T. Takemura, K. Hayashi et al., J. Appl. Spectr, vol.81, pp.280-286, 1977.

M. Müri, K. C. Schuermann, L. De-cola, and M. Mayor, Eur. J. Org. Chem, pp.2562-2575, 2009.

M. Erdélyi and A. Gogoll, J. Org. Chem, vol.66, pp.4165-4169, 2001.