ðɪs ɛnˌæntɪoʊslˈɛkʃən ɪz dˈuː tə ðə stˈɛɹɪks ʌvðə tˈuː fˈɛnɑːl ɡɹˈuːps ɪnðə sˈɪks mˈɛmbɚd tɹænsˈɪʃən stˈeɪt æz ʃˈoʊn ɪn fˈɪɡjɚ θɹˈiː.
This enantioselection is due to the sterics of the two phenol groups in the six membered transition state as shown in Figure 3.