Synthesis and fluorescence properties of donor-acceptor-substituted novel dipyrazolo[3,4-b:3',4'-d]pyridines (DPP).
A rapid and efficient method for the synthesis of novel dipyrazolo[3,4-b:3',4'-d]pyridines (DPP) from pyrazolo[3,4-b]pyridine was successfully developed. The DPP derivative was further N-alkylated (6, 8) as well as N-linked with amino acids (13) and their photophysical properties were studied along with N-aryl DPP 4 and observed that the chromophores at C(4) position in the aryl ring changed the absorption and emission lambda(max).
Jachak
Madhukar N
MN
Organic Chemistry Research Center, Department of Chemistry, K.R.T. Arts, B.H. Commerce and A.M. Science College, Gangapur Road, Nashik 422002 MS, India. mn_jachak@hotmail.com
Bagul
Sandeep M
SM
Birari
Dilip R
DR
Ghagare
Maruti G
MG
Kazi
Muddassar A
MA
Toche
Raghunath B
RB
Mathad
Vijayavitthal T
VT
D000042:Absorption; D005453:Fluorescence; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism*
D011725:Pyridines; C023666:pyridine