مشخصات پژوهش

خانه /Study of in situ generation ...
عنوان
Study of in situ generation of carbocationic system from trityl chloride (Ph 3 CCl) whichefciently catalyzed cross-aldol condensation reaction
نوع پژوهش مقالات در نشریات
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چکیده
Organocatalyst trityl chloride (Ph CCl), by in situ formation of trityl carbocation with inherent instability, ef?ciently promotes the cross-aldol condensation reaction between cycloalkanones and arylaldehydes in solvent-free and homogeneous media to afford a,a transformations based on new reactivity concepts have been identi?ed, often with no counterpart in the more established catalysis regimens [1–9]. Triarylmethyl chlorides (Ar CCl) are an attractive class of small-molecule organocatalysts, which have been utilized to promote a few 3 organic transformations by in situ formation of triarylmethyl carbocations [6–9]. It is noteworthy that the inherent instability of carbocations has precluded up to now their use in catalysis with decent turnover numbers [7]. The aldol condensation reaction has been widely applied for carbon–carbon bond formation in organic synthesis [10–12]. Among them, the cross-aldol condensation of cycloalkanones with arylaldehydes leading to a,a 0 3 bis(arylidene)cycloalkanones in high yields. Moreover, an attractive and plausible mechanism based on observations and the literature is proposed for the reaction.
پژوهشگران عبدالکریم زارع (نفر اول)، ماریا معراج الدین (نفر دوم)، علیرضا حسنی نژاد (نفر سوم)، احمد رضا موسوی زارع (نفر چهارم)، وحید خاکی زاده (نفر پنجم)