Reactions of lithium bicyclo[1.1.0]butan-2-olates formed by carbenoid type decomposition of lithiothioacetal enolates. A novel concept for one-pot cyclopropanation of enones

1989 ◽  
Vol 54 (18) ◽  
pp. 4404-4412 ◽  
Author(s):  
Keith Ramig ◽  
M. Bhupathy ◽  
Theodore Cohen
Keyword(s):  
One Pot ◽  
Novel Concept ◽  
Type Decomposition

Efficient Production of Biodiesel from Rapeseed Oil Deodorizer Distillate: One-Pot Esterification and Transesterfication with Compound Lipases

2013 ◽  
Vol 291-294 ◽  
pp. 267-275 ◽  
Author(s):  
Zhen Nan Zhu ◽  
Li Xu ◽  
Hou Jin Zhang ◽  
Yun Jun Yan
Keyword(s):  
Rapeseed Oil ◽  
Biodiesel Production ◽  
Deodorizer Distillate ◽  
Efficient Production ◽  
Pseudomonas Cepacia ◽  
One Pot ◽  
Free System ◽  
Solvent Free System ◽  
Novel Concept ◽  
Better Than

A novel concept and efficient method for producing biodiesel from rapeseed oil deodorizer distillate (RODD) was developed by using compound lipases for one-pot esterification of FFA and transesterification of triglyceride with methanol in a solvent-free system. Compound lipases Novozyme435 and immobilized Pseudomonas cepacia G63 at 1:1(wt/wt) gave FAME about 96% yield under optimal conditions, being better than that with single lipase or other compound lipases. Besides, the loss rate of vitamin E was 18% much lower than that of using chemical catalyst, which shows that the compound lipases Novozyme435 and immobilized P. cepacia G63 can be ideal catalysts for biodiesel production from rapeseed oil deodorizer distillate.

scholarly journals Black Phosphorus: An Effective Feedstock for the Synthesis of Phosphorus-Based Chemicals

CCS Chemistry ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 166-172 ◽  
Author(s):  
Lie Wu ◽  
Shi Bian ◽  
Hao Huang ◽  
Jiahong Wang ◽  
Danni Liu ◽  
...  
Keyword(s):  
Organophosphorus Compounds ◽  
Black Phosphorus ◽  
White Phosphorus ◽  
The Novel ◽  
Phosphine Oxides ◽  
Elemental Phosphorus ◽  
One Pot ◽  
Mild Conditions ◽  
Novel Concept ◽  
Phosphine Sulfide

We propose and demonstrate the novel concept of synthesizing organophosphorus compounds directly from black phosphorus (BP) nanoparticles as the feedstock. Compounds such as alkyl phosphines, alkyl phosphine oxides, phosphine sulfide, and hexafluorophosphate anion are prepared with good isolation yields under mild conditions. Selective synthesis of primary, secondary, and tertiary organophosphorus compounds is also demonstrated utilizing this one-pot approach. Reaction mechanisms are proposed and discussed. Compared with traditional white phosphorus (P4)-based methods, the new synthetic concept and process utilizing elemental phosphorus are more efficient and environmentally friendly.

Dicyanamide Ionic Liquids: A Versatile Precursor System for Advanced Mesoporous Materials and Functional Composites

2012 ◽  
Vol 1473 ◽  
Author(s):  
Jens Peter Paraknowitsch ◽  
Xenia Tuaev ◽  
Peter Strasser ◽  
Arne Thomas
Keyword(s):  
Ionic Liquids ◽  
Pt Nanoparticles ◽  
Materials Synthesis ◽  
One Pot ◽  
Nitrogen Doped ◽  
Functional Composites ◽  
The One ◽  
Novel Concept ◽  
Nitrogen Doped Carbon

ABSTRACTIonic liquids (ILs) are highly suitable to act as precursors for nitrogen-doped carbon materials. Therefore two structural requirements must be fulfilled: On the one hand, the cation should carry nitrogen in a preferably aromatic environment, on the other hand nitrile groups are essential that can be e.g. incorporated by dicyanamide anions. Thermolysis of such ILs yields highly conductive nitrogen doped carbon exhibiting a graphitic microstructure. Furthermore, various nanomorphologies can be induced via hard-templating. The material has been shown to sufficiently suppress growth and agglomeration of Pt nanoparticles upon their electrocatalytic performance, when applied as a thin coating on the Pt host material. This novel concept of reactivity could further be applied in other fields of materials synthesis, paving the way for the one-pot synthesis of mesoporous carbon/silica composites and in-situ metal doping thereof.

The multicompartment SlideReactor – a novel concept for continuous monitoring of co-cultured cells

2009 ◽  
Vol 47 (01) ◽  
Author(s):  
N Billecke ◽  
S Tröller ◽  
N Raschzok ◽  
MH Morgül ◽  
NN Kammer ◽  
...  
Keyword(s):  
Continuous Monitoring ◽  
Cultured Cells ◽  
Novel Concept

Decision making based on intuitionistic fuzzy preference relations with additive approximate consistency

2020 ◽  
Vol 39 (3) ◽  
pp. 4041-4058
Author(s):  
Fang Liu ◽  
Xu Tan ◽  
Hui Yang ◽  
Hui Zhao
Keyword(s):  
Decision Making ◽  
Decision Makers ◽  
Real Interval ◽  
Preference Relations ◽  
Intuitionistic Fuzzy ◽  
Proposed Model ◽  
Fuzzy Preference Relations ◽  
Novel Concept ◽  
Fuzzy Weights ◽  
Fuzzy Preference

Intuitionistic fuzzy preference relations (IFPRs) have the natural ability to reflect the positive, the negative and the non-determinative judgements of decision makers. A decision making model is proposed by considering the inherent property of IFPRs in this study, where the main novelty comes with the introduction of the concept of additive approximate consistency. First, the consistency definitions of IFPRs are reviewed and the underlying ideas are analyzed. Second, by considering the allocation of the non-determinacy degree of decision makers’ opinions, the novel concept of approximate consistency for IFPRs is proposed. Then the additive approximate consistency of IFPRs is defined and the properties are studied. Third, the priorities of alternatives are derived from IFPRs with additive approximate consistency by considering the effects of the permutations of alternatives and the allocation of the non-determinacy degree. The rankings of alternatives based on real, interval and intuitionistic fuzzy weights are investigated, respectively. Finally, some comparisons are reported by carrying out numerical examples to show the novelty and advantage of the proposed model. It is found that the proposed model can offer various decision schemes due to the allocation of the non-determinacy degree of IFPRs.

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