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thioamide ( - %) but in addition two phosphorheterocyclic systems are isolated, namely -dihydro- -( -methoxyphenyl)- h- , -benzooxazaphosphorine- -thione -sulfide, ( - %) and the corresponding -oxide, ( - %). cyclohexylsalicylamide at somewhat elevated temperature (∼ °c), only gives one phosphorus containing
product besides the thioamide. this product is not a benzoxazaphosphorine derivative but a ring opened phosphonthioamidate, . a mechanism is suggested. the structures are determined by h, c, and p nmr spectroscopy, as well as uv, ir, and ms spectrometry, and elemental analyses. do you want to read the...
https://www.researchgate.net/publication/230327710_Studies_on_organophosphorus_compounds_XXIII_synthesis_of_salicylthioamides_and_4H-132-benzoxaphoshorine_derivatives_from_the_dimer_of_p-methoxyphenylthionophosphine_sulfide_and_salicylamides
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