Journal ArticleDOI
Structural and synthetic studies on the retrofractamides—amide constituents of Piper retrofractum
Avijit Banerji,Debabrata Bandyopadhyay,Manjusha Sarkar,Arup K. Siddhanta,Sudhir C. Pal,Somnath Ghosh,Koshy Abraham,James N. Shoolery +7 more
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TLDR
In this article, two unsaturated amides, retrofractamides A and C, were isolated from the total aboveground parts of Piper retroractum and were shown to be N -isobutyl-9(3′,4′-methylenedioxyphenyl)2 E,4 E,8 E -nonatrienamide from spectroscopic and chemical investigations.About:
This article is published in Phytochemistry.The article was published on 1985-02-05. It has received 42 citations till now. The article focuses on the topics: Piper retrofractum.read more
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Journal ArticleDOI
Studies on oxygen heterocycles: Part-1: Acid catalysed and photochemical reactions of some aryldiazoketones
Somnath Ghosh,Indira Datta,Rupak Chakraborty,Tapas Kumar Das,Judhajit Sengupta,Dipak Chandra Sarkar +5 more
TL;DR: The photochemical decomposition of the said diazoketoneg (4 a, 11 and 16 ) gave products depending on the length of the side chain present in the substrates as mentioned in this paper.
Journal ArticleDOI
Xanthine oxidase inhibitors isolated from Piper nudibaccatum
Hongxin Liu,Meng-Ting He,Haibo Tan,Wei Gu,Shi-Xian Yang,Yue-Hu Wang,Ling Li,Chunlin Long,Chunlin Long +8 more
TL;DR: Two new hydroxychavicol analogs, nudibaccatumin A (1) and B (2), together with twenty known compounds were isolated from the methanol extract of Piper Naccatum as discussed by the authors.
Book ChapterDOI
Bioactive Natural Products as Potential Candidates to Control Aedes aegypti, the Vector of Dengue
Regina Geris,Paulo R. Ribeiro,Mauricio da Silva Brandão,Heloísa Helena Garcia da Silva,Ionizete Garcia da Silva +4 more
TL;DR: This review deals with the description of bioactive secondary metabolites produced by the living organisms, including plants, fungi, bacteria and lichens which have activity against the mosquito Aedes aegypti, the vector responsible for dengue and yellow fever.
Journal ArticleDOI
Synthesis of N-(E)-(4-Methoxystyryl)benzamide (Alatamide)
TL;DR: In this paper, the synthesis of N-(E)- (4-methoxystyryl)benzamide (alatamide) has been achieved through the decarboxylation of the enamido-ester.
Journal ArticleDOI
Studies on enamides. Part - 1: Photochemical rearrangements of N-aroylcarbazoles
TL;DR: In this article, the photolysis of N-aroyl carbazoles along with the formation of carbazole and the rearranged product ratio is wavelength-dependent.
References
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The Utility of Phosphonate Carbanions in Olefin Synthesis
Journal ArticleDOI
Olefin synthesis with organic phosphonate carbanions
John Boutagy,Richard W. Thomas +1 more
Journal ArticleDOI
A new and selective method of oxidation. the conversion of alkyl halides and alkyl tosylates to aldehydes
Journal ArticleDOI
Alkaloids of Piper longum Linn—I : Structure and synthesis of piperlongumine and piperlonguminine
Asima Chatterjee,C.P. Dutta +1 more
TL;DR: Piperlongumine and piperlonguminine are shown to be N-(3,4,5-trimethoxycinnamoyl)-Δ5-piperidin-2-one and isobutylamide of piperic acid respectively.