RSITY CH H, C CH,CH, 理工 H,C CH 3 H H CO, CH3 CH. H CH, H CH FIGURE 22.1 Chlorophyll a. [The structure of chlorophyll a was established largely through the work of H. Fischer(Munich), R. Willstatter (Munich), and J. B Conant(Har- vard). A synthesis of chlorophyll a from simple organic compounds was achieved by R. B Woodward(Harvard)in 1960, who won the Nobel Prize in 1965 for his outstanding contri- butions to synthetic organic chemistry