the reaction between trimethylamine with propargyl bromide was studied and the structure of triethyl propargyl ammonium bromide was illustrated by 1hnmr, ir, and mass spectra.

Chickpea (Cicer arietinum L.) commonly known as gram or Bengal belongs to the family Leguminaceae (Fabaceae). It's one of most important rabi season pulse crops grown in India for economic importance and improve soil fertility. The productivity chickpea is low despite having high-yielding varieties new agronomic practices. One causes poor infestation weeds field chickpea. It a competitor becaus...

molecular experiment was conducted to confirm resistant to aryloxyphenoxypropionate herbicides in winter wild oat (avena ludoviciana duriu.) populations of wheat fields in khuzestan province, at faculty of agriculture of ferdowsi university, during year of 2006. first, 44 wild oat populations from ahvaz, andimeshk, shush, shushtar, ramhormoz, susangerd, and dezful cities with a susceptible popu...

This paper examines the unimolecular dissociation of propargyl (HCCCH2) radicals over a range of internal energies to probe the CH+HCCH and C+C2H3 bimolecular reactions from the radical intermediate to products. The propargyl radical was produced by 157 nm photolysis of propargyl chloride in crossed laser-molecular beam scattering experiments. The H-loss and H2 elimination channels of the nasce...

Synthesis of poly(vinyl chloride-g-β-butyrolactone) [poly(VC-g-BL)] graft copolymer was carried out by means “click” chemistry terminally propargyl polyβ-butyrolactone ester (PBL-propargyl) and polyvinyl chloride with pendant azido group (PVC-N3). PVC-N3 synthesized reaction purified PVC sodium azide. PBL-propargyl obtained the β-butyrolactone alcohol ring-opening polymerization. By using PBL-p...

Choline (Cho)-containing phospholipids are the most abundant phospholipids in cellular membranes and play fundamental structural as well as regulatory roles in cell metabolism and signaling. Although much is known about the biochemistry and metabolism of Cho phospholipids, their cell biology has remained obscure, due to the lack of methods for their direct microscopic visualization in cells. We...

A field experiment was conducted during the winter (rabi) season of 2021–22 at Indian Agricultural Research Institute, New Delhi, to investigate effect nano-urea and herbicides on yield yield-attributing characters wheat (Triticum aestivum L.). The tested in a split-plot design with 4-nano-urea based treatments, viz. control (no nitrogen), recommended dose nitrogen (RDN) 120 kg N/ha, 50% RDN + ...

abstract three separate greenhouse experiments were conducted in the greenhouse facilities of the iranian plant protection research institute, tehran, to study the efficacy of some accase inhibiting herbicides for control of resistant based on mechanism, resistance based on enhanced metabolism and susceptible wild oat biotypes. in each experiment, biotypes were treated separately by 17 herbicid...

Although several methods for the preparation of 4o propargyl indole derivatives have been published, this synthetic transformation is complicated by the tendency of 3o propargyl alcohols to form allenium intermediates in acidic media.  It is therefore a challenge to find an efficient method for the C-3 propargylation of indoles with 3° propargylic alcohols.  In this pa...

Thermal rearrangement of propargyl naphthyl ethers produced naphthopyrans. In the presence of sodium methoxide, propargyl naphthyl ethers were converted easily to naphthofurans and naphthodifurans in good yields