... The Journal of Organic ... The organic extracts were combined, dried (Na 2 SO 4 ), and then evaporated to dryness to give the product as bright yellow crystals ... 1 3050, 2900, 2156, 1739, 1454, 1430, 1234, 1190, 1111, 1089, 1018; δ H (400 MHz; DMSO-d) 8.13 (2H, dd, J = 6.8 1.6 ...
[Smith, Matthew R.; Blake, Alexander J.; Hayes, Christopher J.; Stevens, Malcolm F. G.; Moody, Christopher J. Journal of Organic Chemistry, 2009 , vol. 74, # 24 p. 9372 - 9380]