fˈɜːst, bɛnzˈɪlɐmˌiːn wˈʌn ɪz kəndˈɛnst wɪð ɡlˈaɪɑːksəl tˈuː ˌʌndɚɹ ɐsˈɪdɪk ænd dˌiːhaɪdɹˈeɪɾɪŋ kəndˈɪʃənz tə jˈiːld ðə fˈɜːst ˌɪntɚmˈiːdiət kˈɑːmpaʊnd.θɹˈiː.
First, benzylamine (1) is condensed with glyoxal (2) under acidic and dehydrating conditions to yield the first intermediate compound.(3).