نتایج جستجو برای: Acetylenic compounds
تعداد نتایج: 227080 فیلتر نتایج به سال:
Journal:
:Chemical and Pharmaceutical Bulletin
1963
Journal:
:Chemical and Pharmaceutical Bulletin
1960
Journal:
:Journal of Synthetic Organic Chemistry, Japan
1961
Journal:
:Journal of Synthetic Organic Chemistry, Japan
1961
Journal:
:Bulletin of the Chemical Society of Japan
1959
Journal:
:Chemical and Pharmaceutical Bulletin
1964
Journal:
:iranian journal of chemistry and chemical engineering (ijcce)
2008
malek taher maghsoodlou
faramarz rostami charati
sayed mostafa habibi khorassani
maryam khosroshahrodi
reaction of dialkyl acetylenedicarboxylates 1a-c andpyrrole derivatives 2a-e in the presence of triphenylphosphite (tpp) was investigated and the effect of the pyrrole substitution was established. diastereoselectivity is observed with pyrroles, 2a,b, yieldingphosphonate ester derivatives 3a-f and 4,and their relative configuration is determined by 1h/13c and 31p nmr and confirmed by single x-r...
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