+++4 статьи (ScienceDirect), спасибо eFo!!!

[Piston]

Здравствуйте уважаемые коллеги! Помогите, пожалуйста, найти несколько статей на ScienceDirect:
1) Chakrabarty, Manas; Basak, Ramkrishna; Ghosh, Nandita Microwave-assisted Michael reaction of 3-(2'-nitrovinyl)indole with indoles on TLC-grade silica gel. A new, facile synthesis of 2,2-bis(3'-indolyl)nitroethanes // Tetrahedron Letters. 2001. Vol. 42. N. 23. P. 3913 – 3916.

DOI:

http://dx.doi.org/10.1016/S0040-4039(01)00581-0

2) Chakrabarty, Manas; Basak, Ramkrishna; Ghosh, Nandita; Harigaya, Yoshihiro Michael reaction of indoles with 3-(2'-nitrovinyl)indole under solvent-free conditions and in solution. An efficient synthesis of 2,2-bis(indolyl)nitroethanes and studies on their reduction // Tetrahedron. 2004. Vol. 60. N. 8. P. 1941 – 1950.

DOI:

http://dx.doi.org/10.1016/j.tet.2003.12.021

3) Hong, Seong-Jin; Jeong, Seung-Doo; Yoo, Jaeduk; Kim, Jong Seung; Yoon, Juyoung; Lee, Chang-Hee Direct alkylation of pyrrole with vinyl substituted aromatics: versatile precursors for the synthesis of porphyrinoid macrocycles // Tetrahedron Letters. 2008. Vol. 49. N. 26. P. 4138 – 4141.

DOI:

http://dx.doi.org/10.1016/j.tetlet.2008.04.119

4) Habib, Pateliya Mujjamil; Kavala, Veerababurao; Kuo, Chun-Wei; Raihan, Mustafa J.; Yao, Ching-Fa Catalyst free conjugate addition of indoles and pyrroles to nitro alkenes under solvent free condition (SFC): An effective
greener route to access 3-(2-nitro-1-phenylethyl)-1H-indole and 2-(2-nitro-1-phenylethyl)-1H-pyrrole derivatives // Tetrahedron. 2010. Vol. 66. N. 34. P. 7050 – 7056.

DOI:

http://dx.doi.org/10.1016/j.tet.2010.05.104

Заранее благодарю!

[eFo]

[Piston]

Большое спасибо!