The effect of cyclization of compounds 5 and 6 into compound 37-42 and 46, possessing different aryl groups
at 6-position of the [1,2,4]triazolo[3,4-b][1,3,4]thiadiazole ring system have also been studied.
The resonance peaks at 6.42-8.50 ppm were assigned to the aryl groups
. The peaks at 11.53-11.65 ppm and 11.96-12.90 ppm corresponded to CSNH and CONH, respectively.
Cyclobutane is condensed to aromatic rings such as benzene, naphthalene, anthracene, and pyrene and may have different substituents such as alkyl, alkoxy, alkylthio, and aryl groups
. A polymer light-emitting device consists of a polymer electron-transporting layer between a cathode and a light-emitting layer, and a polymer hole-transporting layer between an anode and a light-emitting layer, resulting in a maximum outer quantum yield of 1.5% when a voltage is applied between an anode and a cathode.
where [n.sub.Allyl] and [n.sub.ArH'] refer to the proton numbers of allyl groups and aryl groups
in HBP-AL, respectively.
In triple quadrupole pseudo-[MS.sup.3], a pattern of five major fragments (I-V) was observed following in-source fragmentation (ISF) for all compounds 4a-j regardless of the different aryl groups
of the main nucleus.
Synthesis and properties of photochromic diarylethenes with heterocyclic aryl groups
. Bulletin of the Chemical Society of Japan, 71: 985-996.
Alkyl and aryl groups
, fluoro-substituted organic groups, and wholly inorganic components can be utilized.
Each R2 is selected from alkyl and aryl groups
having up to six carbon atoms.
Basically, organotin compounds are characterized by a tin-carbon bond having arlyl or aryl groups
; the organotin moiety is significantly toxic while anionic legend that influences physiological properties, is generally little or no toxic.
(5) A combination of trimethoxy silanes with propyl and phenyl groups can be chosen to give the same proportions of alkyl and aryl groups
that are present in the pre-formed silicone intermediate shown in Fig.