Microwave‐Assisted Synthesis of Phthalonitriles and Phthalocyanines.

Abstract

NitrilesNitriles Q 0520 Microwave-Assisted Synthesis of Phthalonitriles and Phthalocyanines -[microwave-promoted synthesis of phthalonitriles (III) and their microwave-assisted cyclization into regioisomeric phthalocyanines]. -(CSOKAI, V.; PARLAGH, G.; GROFCSIK, A.; KUBINYI, M.; BITTER*, I.; Synth. Commun. 33 (2003) 10, 1615-1621; Dep. Org. Chem. Technol., Budapest Univ. Technol. Econ., H-1521 Budapest, Hung.; Eng.) -M. Kowall 37-075

Synthesis, Structure, and Exctraction Ability of Tetrasubstituted Thiacalix[4]Arenes with Crown Ether Fragments on the Lower Rim

“…Usually, unsubstituted thiacalix [4]arene 3 gives bis-thiacalix[4]-arene 10 whereas 1,2-crosslinked product 11 is formed with calix [4]arene in analogous reaction (Scheme 4). [22] To explain such behavior the formation of betaine intermediate 12 in 1,3-alternate stereoisomeric form has been suggested [24] (Figure 3). In this case, intramolecular crosslinking is more preferential compared to intermolecular interaction due to the steric effects, which are caused by the presence of tert-butyl groups preventing the approach of the second calixarene molecule.…”

Microwave-assisted synthesis and characterization of novel metal-free and metallophthalocyanines containing four 14-membered tetraaza macrocycles

“…In particular, the reaction time and energy input are supposed to be mostly reduced in the reactions that are run for a long time at high temperatures under conventional conditions [12]. Microwave-assisted synthesis of phthalocyanines is novel [13][14][15][16][17][18][19][20][21][22].…”