scholarly journals Highly efficient one-pot/one-step synthesis of multiblock copolymers from three-component polymerization of carbon dioxide, epoxide and lactone

2015 ◽  
Vol 6 (2) ◽  
pp. 1530-1536 ◽  
Author(s):  
Yang Li ◽  
Jiali Hong ◽  
Renjian Wei ◽  
Yingying Zhang ◽  
Zaizai Tong ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Exchange Reaction ◽  
Multiblock Copolymers ◽  
Cyclohexene Oxide ◽  
One Pot ◽  
Highly Efficient ◽  
One Step

Carbon dioxide-based multiblock copolymers were synthesized by a one-pot/one-step three-component polymerization of cyclohexene oxide, ε-caprolactone and CO2via cross-chain exchange reaction at two catalysts.

One-pot synthesis of dimethyl carbonate from carbon dioxide, cyclohexene oxide, and methanol

2013 ◽  
Vol 41 (7) ◽  
pp. 4101-4111 ◽  
Author(s):  
Qiusheng Yang ◽  
Haiou Wang ◽  
Xiaoshu Ding ◽  
Xue Yang ◽  
Yanji Wang
Keyword(s):  
Carbon Dioxide ◽  
Dimethyl Carbonate ◽  
Cyclohexene Oxide ◽  
One Pot ◽  
One Pot Synthesis

A Study on the Rearrangement of Dialkyl 1-Aryl-1-hydroxymethylphosphonates to Benzyl Phosphates

2020 ◽  
Vol 24 (4) ◽  
pp. 465-471 ◽  
Author(s):  
Zita Rádai ◽  
Réka Szabó ◽  
Áron Szigetvári ◽  
Nóra Zsuzsa Kiss ◽  
Zoltán Mucsi ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Room Temperature ◽  
Phase Transfer ◽  
One Pot ◽  
Substrate Dependence ◽  
Triethylbenzylammonium Chloride ◽  
One Step ◽  
The Pudovik Reaction ◽  
The One ◽  
Solid Liquid

The phospha-Brook rearrangement of dialkyl 1-aryl-1-hydroxymethylphosphonates (HPs) to the corresponding benzyl phosphates (BPs) has been elaborated under solid-liquid phase transfer catalytic conditions. The best procedure involved the use of triethylbenzylammonium chloride as the catalyst and Cs2CO3 as the base in acetonitrile as the solvent at room temperature. The substrate dependence of the rearrangement has been studied, and the mechanism of the transformation under discussion was explored by quantum chemical calculations. The key intermediate is an oxaphosphirane. The one-pot version starting with the Pudovik reaction has also been developed. The conditions of this tandem transformation were the same, as those for the one-step HP→BP conversion.

Green and Highly Efficient One-Pot Synthesis of Some New Bis Thiazolidinones

2013 ◽  
Vol 10 (10) ◽  
pp. 764-769 ◽  
Author(s):  
Akbar Mobinikhaledi ◽  
Alireza Amiri
Keyword(s):  
One Pot ◽  
Highly Efficient ◽  
One Pot Synthesis

Iodine Catalyzed Highly Efficient One Pot Three Component Synthesis of 4-arylidene-3-methylisoxazol-5 (4H) -one in Aqueous Medium

2018 ◽  
Vol 5 (2) ◽  
pp. 122-128 ◽  
Author(s):  
Srinivas L. Nakkalwar ◽  
Shivaji B. Patwari ◽  
Mohasim M. Patel ◽  
Vivekanand B. Jadhav
Keyword(s):  
Aqueous Medium ◽  
One Pot ◽  
Highly Efficient

A highly efficient and green approach for the synthesis of pyrimido[4,5-b]quinolines using N,N-diethyl-N-sulfoethanaminium chloride

2021 ◽  
Vol 76 (2) ◽  
pp. 85-90
Author(s):  
Abdolkarim Zare ◽  
Manije Dianat
Keyword(s):  
Reaction Times ◽  
Solvent Free ◽  
One Pot ◽  
Catalyst Amount ◽  
Green Protocol ◽  
Highly Efficient ◽  
Green Approach ◽  
Solvent Free Conditions ◽  
The One ◽  
High Yields

Abstract A highly efficient and green protocol for the synthesis of pyrimido[4,5-b]quinolines has been described. The one-pot multicomponent reaction of dimedone with arylaldehydes and 6-amino-1,3-dimethyluracil in the presence of N,N-diethyl-N-sulfoethanaminium chloride ([Et3N–SO3H][Cl]) as an ionic liquid (IL) catalyst under solvent-free conditions afforded the mentioned compounds in high yields and short reaction times. Our protocol is superior to many of the reported protocols in terms of two or more of these factors: the reaction times, yields, conditions (solvent-free versus usage of organic solvents), temperature and catalyst amount.

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