Organocatalytic glycosylation reactions were attempted with an aim to achieve stereoselectivity using chiral TRIP (Binol derived phosphoric acid) and achiral biphenyl phosphoric acids as catalyst and a thiourea derivative as co-catalyst, based on the transition model suggested by Schmidt group[1] during co-operative organocatalysis. Though the stereoselectivity as reported by the Schmidt was not observed, but it was found that the thiourea co-catalyst assisted the catalyst in making the reaction faster, especially in the cases where the catalyst was itself not a strong enough acid.

中文翻译：

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在合作的有机催化立体选择性糖基化反应中评估在硫脲助催化剂存在下不同手性和非手性磷酸的有效性

尝试进行有机催化糖基化反应，其目的是基于Schmidt组[1]在共催化过程中建议的过渡模型，使用手性TRIP（由Binol衍生的磷酸）和非手性联苯磷酸作为催化剂，并以硫脲衍生物作为助催化剂来实现立体选择性。 -手术有机催化。尽管未观察到Schmidt报道的立体选择性，但发现硫脲助催化剂有助于催化剂使反应更快，特别是在催化剂本身不是足够强的酸的情况下。