4'-Bromophenyl Triptycene-2,5-diol
T-Br-PH
M.p. 118.0–119.6 °C
1H-NMR (400 MHz, DMSO-d6): δ = 9.09 (s, 1H), 8.40 (s, 1H), 8.41 (s, 1H), 7.52 (dd, J = 8.4 Hz and 2 Hz,
2H), 7.40 (dd, J = 8.4 Hz and 2 Hz, 4H), 7.32 (dd, J = 8.4 Hz and 2.8 Hz, 2H), 6.97 (dd, J = 8.4 Hz and
2 Hz, 4H). 6.36 (s, 1H), 5.99 (s, 1H), 5.82 (s, 1H).
13C-NMR (100 MHz, DMSO-d6): 146.11, 145.96, 141.72, 138.67, 135.08, 132.29, 131.72, 127.03,
125.28, 125.19, 124.21, 124.03, 120.18, 114.41, 60.20, 47.40, 47.09, 21.21 and 14.55.
MS: m/z (ES), 440.2 [(M−1)−].
Elemental analysis: Calculated for C26H17BrO2 (441.31): C, 70.76%; H, 3.88%; O, 7.25%. Found: C,
Molbank 2013, 2013(1), M796; doi:10.3390/M796
Short Note
4'-Bromophenyl Triptycene-2,5-diol
email............vasantapai@gmail.com.
1 Department of Industrial Chemistry, School of Chemical Sciences, Jnana Sahyadri, Kuvempu University, Shankaraghatta 577451, Shimoga, Karnataka, India2 Department of Chemistry and Center of Excellence in Polymer Science, Karnatak University, Dharwad 580003, India
Diels Alder reaction of 4-bromophenylquinone (Br-PQ) with anthracene, followed by reduction affords the desired 4'-bromophenyl triptycene-2,5-diol (T-Br-PH). The described synthesis represents a simple and efficient method for the construction of a triptycene ring with a bromophenyl pendant. The intermediate and the final compound (T-Br-PH) have been characterized by elemental analysis, NMR, and LCMS techniques.
4-Bromophenylquinone
Br-PQ
1H-NMR (400 MHz, DMSO-d6): δ = 7.63 (d, J = 8 Hz, 2H), 7.46 (d, J = 8 Hz, 2H), 6.95 (d, J = 7.2 Hz,
1H), 6.90 (d, J = 10 Hz, 1H), 6.68 (s, 1H).
13C-NMR (100 MHz, DMSO-d6): 150.65, 147.15, 138.44, 131.53, 131.26, 127.21, 120.15, 117.45,
116.61, 115.97.
LCMS: m/z (ES), 262.1 [(M−1)−].
Elemental analysis: Calculated for C12H7BrO2 (263.08): C, 54.78%; H, 2.68%; O, 12.16%. Found: C,
54.52%; H, 2.48%; O, 12.02%.
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Kuvempu University, Shankaraghatta 577451, Shimoga, Karnataka, India
Kuvempu University, Shankaraghatta 577451, Shimoga, Karnataka, India
http://www.mappery.com/map-of/Shimoga-Tourist-Map
Shimoga City Railwaystation
Shimoga–Talaguppa railway
Shimoga City Old Bus staion
shimoga
http://visitingplacesofgreatindia.blogspot.in/2013/05/shimoga-district-karnataka.html
DRUG APPROVALS BY DR ANTHONY MELVIN CRASTO .....FOR BLOG HOME CLICK HERE