Subscribe to RSS
Please copy the URL and add it into your RSS Feed Reader.
https://www.thieme-connect.de/rss/thieme/en/10.1055-s-00000084.xml
Synthesis 2008(8): 1179-1181
DOI: 10.1055/s-2008-1042939
DOI: 10.1055/s-2008-1042939
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York
A Reliable Route to 1,2-Diamino-4,5-phthalodinitrile
Further Information
Received
19 October 2007
Publication Date:
18 March 2008 (online)
Publication History
Publication Date:
18 March 2008 (online)
Abstract
Starting from o-phenylenediamine, we have developed a new and reliable route to 1,2-diamino-4,5-phthalodinitrile that is based on the reductive desulfurisation of 5,6-dicyano-2,1,3-benzothiadiazole with sodium borohydride. The reaction sequence uses only cheap reagents and relies on simple recrystallisations for the purification of all intermediates.
Key words
heterocycles - reduction - sulfur - boron - protecting groups
-
1a
Tykwinski RR.Schreiber M.Carlon RP.Diederich F.Gramlich V. Helv. Chim. Acta 1996, 79: 2249 -
1b
Pak JJ.Weakley TJR.Haley MM. J. Am. Chem. Soc. 1999, 121: 8182 -
1c
Sarkar A.Pak JJ.Rayfield GW.Haley MM. J. Mater. Chem. 2001, 11: 2943 -
2a
Chen S.Xu X.Liu Y.Qiu W.Yu G.Wang H.Zhu D. J. Phys. Chem. C 2007, 111: 1029 -
2b
Chen S.Xu X.Liu Y.Yu G.Sun X.Qiu W.Ma Y.Zhu D. Adv. Funct. Mater. 2005, 15: 1541 -
2c
Organic light emitting devices: Synthesis, properties and applications
Müllen K.Scherf U. Wiley-VCH; Weinheim: 2006. - 3
Introduction to nonlinear optical effects in molecules and polymers
Prasad PN.Williams DJ. Wiley; New York: 1991. -
4a
de la Torre G.Vazquez P.Agullo-Lopez F.Torres T. Chem. Rev. 2004, 3723 -
4b
Phthalocyanines: Properties and Applications
Vol. 1-4:
Leznoff CC.Lever AB. Wiley-VCH; Weinheim: 1998. -
5a
Mitzel F.FitzGerald S.Beeby A.Faust R. Chem. Eur. J. 2003, 9: 1233 -
5b
Kudrik EV.Shaposhnikov GP.Balakirev AE. Russ. J. Gen. Chem. 1999, 69: 1321 -
5c
Mikhalenko SA.Derkacheva VM.Luk’yanets EA. Russ. J. Gen. Chem. 1981, 51: 1405 -
5d
Rusanova J.Pilkington M.Decurtins S. Chem. Commun. 2002, 2236 - 6
Youngblood WJ. J. Org. Chem. 2006, 71: 3345 - 7
Faust R. Eur. J. Org. Chem. 2001, 2797 - 8
Cheeseman GWH. J. Chem. Soc. 1962, 1170 - 9
Moerkved EV.Siren M.Bjoerlo O.Kjoesen H.Hvistendahl G.Mo F. Acta Chem. Scand. 1995, 49: 658 - 10
Stetter H. Chem. Ber. 1953, 86: 161 - 11
Cheeseman GWH. J. Chem. Soc. 1955, 3308 -
12a
Yang R.Tian R.Yan J.Zhang Y.Yang J.Hou Q.Yang W.Zhang C.Cao Y. Macromolecules 2005, 244 -
12b
Tsubata Y.Suzuki T.Miyashi T. J. Org. Chem. 1992, 57: 6749 - 13
DaSilveira Neto BA.Lopes AS.Wüst M.Costa VEU.Ebeling G.Dupont J. Tetrahedron Lett. 2005, 46: 6843 -
14a
Suzuki T.Okubo T.Okada A.Yamashita Y.Miyashi T. Heterocycles 1993, 35: 395 -
14b
Miao S.Bangcuyo CG.Smith MD.Bunz UHF. Angew. Chem. Int. Ed. 2006, 45: 661 - 15
Takahashi K.Eguchi H.Shiwaku S.Hatta T.Kyoya E.Yonemitsu T.Mataka S.Tashiro M. J. Chem. Soc., Perkin Trans. 1 1988, 1869