ChemInform Abstract: Efficient Synthesis of β-Oxoalkyl Carbamates from Carbon Dioxide, Internal Propargylic Alcohols, and Secondary Amines Catalyzed by Silver Salts and DBU.

ChemInform ◽  
2010 ◽  
Vol 41 (35) ◽  
pp. no-no ◽  
Author(s):  
Chaorong Qi ◽  
Liangbin Huang ◽  
Huanfeng Jiang
Keyword(s):  
Carbon Dioxide ◽  
Secondary Amines ◽  
Efficient Synthesis ◽  
Propargylic Alcohols ◽  
Silver Salts

Silver salts and DBU cooperatively catalyzed nucleophilic addition/cyclization of propargylic alcohols with trifluoromethyl ketones

2015 ◽  
Vol 13 (19) ◽  
pp. 5399-5406 ◽  
Author(s):  
Jingjing Wang ◽  
Wei-Guang Kong ◽  
Feng Li ◽  
Jie Liu ◽  
Qin Shen ◽  
...  
Keyword(s):  
Nucleophilic Addition ◽  
Silver Salt ◽  
Efficient Synthesis ◽  
Propargylic Alcohols ◽  
Trifluoromethyl Ketones ◽  
Silver Salts

A general and efficient synthesis of trifluoromethyl substituted 5-alkylidene-1,3-dioxolane using a silver salt and DBU cooperatively catalyzed nucleophilic addition/cyclization of propargylic alcohols and trifluoromethyl ketones is described.

A recyclable AgI/OAc− catalytic system for the efficient synthesis of α-alkylidene cyclic carbonates: carbon dioxide conversion at atmospheric pressure

2017 ◽  
Vol 19 (13) ◽  
pp. 2936-2940 ◽  
Author(s):  
Ye Yuan ◽  
Yu Xie ◽  
Cheng Zeng ◽  
Dandan Song ◽  
Somboon Chaemchuen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic System ◽  
Atmospheric Pressure ◽  
Cyclic Carbonates ◽  
Efficient Synthesis ◽  
Carbon Dioxide Conversion ◽  
Propargylic Alcohols

The cyclization of CO2 and propargylic alcohols were catalyzed by a green and recyclable (20 cycles) AgI/OAc− system under atmospheric pressure.

scholarly journals Carbon dioxide-based facile synthesis of cyclic carbamates from amino alcohols

2018 ◽  
Vol 54 (25) ◽  
pp. 3166-3169 ◽  
Author(s):  
Teemu Niemi ◽  
Israel Fernández ◽  
Bethany Steadman ◽  
Jere K. Mannisto ◽  
Timo Repo
Keyword(s):  
Carbon Dioxide ◽  
Amino Alcohols ◽  
Efficient Synthesis ◽  
Facile Synthesis

Selective, straightforward, and efficient synthesis of cyclic carbamates from CO2 and amino alcohols.

Efficient Synthesis and Antibacterial Activities of Some Novel 1,2,3-Triazoles Prepared from Propargylic Alcohols and Benzyl Azides

2014 ◽  
Vol 51 (5) ◽  
pp. 1298-1305 ◽  
Author(s):  
Rahman Hosseinzadeh ◽  
Mohammadreza Khadem Abolfazli ◽  
Mojtaba Mohseni ◽  
Maryam Mohadjerani ◽  
Zahra Lasemi
Keyword(s):  
Antibacterial Activities ◽  
Efficient Synthesis ◽  
Propargylic Alcohols

An efficient synthesis of N-nitrosamines under solvent, metal and acid free conditions using tert-butyl nitrite

2016 ◽  
Vol 18 (8) ◽  
pp. 2323-2330 ◽  
Author(s):  
Priyanka Chaudhary ◽  
Surabhi Gupta ◽  
Nalluchamy Muniyappan ◽  
Shahulhameed Sabiah ◽  
Jeyakumar Kandasamy
Keyword(s):  
Secondary Amines ◽  
Efficient Synthesis ◽  
Efficient Manner ◽  
Tert Butyl ◽  
Solvent Metal

N-Nitrosation of secondary amines was accomplished in an efficient manner using tert-butyl nitrite under solvent, metal and acid free conditions.

Efficient Synthesis of O-tert-Propargylic Oximes via Nicholas Reaction

Synthesis ◽  
2020 ◽  
Vol 52 (22) ◽  
pp. 3461-3465
Author(s):  
Itaru Nakamura ◽  
Keigo Shiga ◽  
Mao Suzuki ◽  
Masahiro Terada
Keyword(s):  
Ammonium Nitrate ◽  
Efficient Synthesis ◽  
Propargylic Alcohols ◽  
Cyclic Nitrones ◽  
Acidic Catalysts ◽  
Nicholas Reaction ◽  
High Yields ◽  
Dicobalt Hexacarbonyl ◽  
Cerium Iv Ammonium Nitrate

A synthetic protocol to access O-tert-propargylic oximes derived from tertiary propargylic alcohols was established via Nicholas reaction. Thus, BF3·OEt2-mediated reaction between the dicobalt hexacarbonyl complex of tert-propargylic alcohols and p-nitrobenzaldoxime followed by decomplexation with cerium(IV) ammonium nitrate afforded the corresponding O-tert-propargylic oximes in good to high yields. The obtained O-tert-propargylic oximes were effectively converted into heterocycles, such as four-membered cyclic nitrones, oxazepines, and isoxazolines, by using π-Lewis acidic catalysts.

scholarly journals Cu(I)/Ionic Liquids Promote the Conversion of Carbon Dioxide into Oxazolidinones at Room Temperature

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1241 ◽  
Author(s):  
Jikuan Qiu ◽  
Yue Zhao ◽  
Yuling Zhao ◽  
Huiyong Wang ◽  
Zhiyong Li ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Noble Metal ◽  
Room Temperature ◽  
Ambient Pressure ◽  
Sustainable Chemistry ◽  
One Pot ◽  
Propargylic Alcohols ◽  
Noble Metal Catalysts ◽  
Three Component Reaction ◽  
Carbon Dioxide Co2

Recently, the efficient chemical fixation of carbon dioxide (CO2) into high value chemicals without using noble metal catalysts has become extremely appealing from the viewpoint of sustainable chemistry. In this work, a one-pot three component reaction of propargylic alcohols, anines and CO2 that can proceed in an atom economy and environmentally benign manner by combination of CuI and tetrabutylphosphonium imidazol ([P4444][Im]) as a catalyst was described. Catalysis studies indicate that this catalytic system is an effective catalyst for the conversion of CO2 into oxazolidinones at room temperature and ambient pressure without any solvent. The results provide a useful way to design novel noble metal-free catalyst systems for the transformation of CO2 into other valuable compounds.

Sign in / Sign up

Export Citation Format

Share Document