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Synthesis of Pyrrole Phosphonate Esters: Emphasis on Pyrrole NH Acids and Dialkylacetylenic Esters Substitution
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نویسنده
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Maghsoodlou Malek Taher ,Rostami Charati Faramarz ,Habibi Khorassani Mostafa ,Khosroshahrodi Maryam ,Makha Mohamed
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منبع
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iranian journal of chemistry and chemical engineering - 2008 - دوره : 27 - شماره : 1 - صفحه:105 -113
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چکیده
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Reaction ojdialkyl acetylenedicarboxylates la-c and pyrrole derivatives 2a-e in the presence ojtriphenylphosphite (tpp) was investigated and the effect ofthe pyrrole substitution was established. diastereoselectivity is observed with pyrroles, 2a,b, yielding hosphonate ester derivatives 3a-f and 4, and their relative configuration is determined by 1hi13c and 31p nmr and confirmed by single x-ray diffraction. similar reactions with higher degree oj substitution oj thepyrrole, 2c,e showed no diastereoselectivity.
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کلیدواژه
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Organophosphorus compounds ,Acetylenic diesters ,Substituted pyrrole ,Phosphonate esters ,Diastereoisomers.
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آدرس
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university of sistan and baluchestan, ایران, gorgan university of agricultural sciences and natural resources, ایران, university of sistan and baluchestan, ایران, university of sistan and baluchestan, ایران, University of Western Australia, ایران
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پست الکترونیکی
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magh27@hamoon.usb.ac.ir
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Authors
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