DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Synthesis of Acid Hydrazides from Carboxylic Acids in Continuous Flow

Journal Article · · Organic Process Research & Development

A concise methodology for the synthesis of acid hydrazides from carboxylic acids via a continuous flow process in yields ranging from 65 to 91% is described. Using short residence times of between 13 and 25 mins, the conditions proved amenable to a variety of mono- and diacids, including aliphatic, aromatic, and heteroaromatic functionalities. Furthermore, to demonstrate scalability, a large-scale (200 g) synthesis of azelaic dihydrazide was conducted over a continuous run of 9 h with an 86% overall yield, equating to a 22 g/h output.

Research Organization:
University of California San Diego, La Jolla, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO)
Grant/Contract Number:
EE0009295
OSTI ID:
2503942
Journal Information:
Organic Process Research & Development, Journal Name: Organic Process Research & Development Journal Issue: 9 Vol. 27; ISSN 1083-6160
Publisher:
ACS PublicationsCopyright Statement
Country of Publication:
United States
Language:
English

References (41)

A Rapid Total Synthesis of Ciprofloxacin Hydrochloride in Continuous Flow journal June 2017
The Construction of Homochiral Lanthanide Quadruple‐Stranded Helicates with Multiresponsive Sensing Properties toward Fluoride Anions journal June 2017
Diastereoselective Nitroaldol Reaction Catalyzed by Binuclear Copper(II) Complexes in Aqueous Medium journal October 2014
Synthesis of [(4,5‐disubstituted‐4H‐1,2,4‐triazol‐3‐yl)thio]alkanoic acids and their analogues as possible antiinflammatory agents journal August 1992
Esterification of acetic and oleic acids within the Amberlyst 15 packed catalytic column journal January 2016
Determination of hydrazide content in poly(oxadiazole-hydrazide) copolymers by NMR and thermal analysis journal September 2003
Thermoreversible gelation of poly(urethane acyl-semicarbazides) carrying cycloaliphatic moieties and studies on selective adsorption of dyes from wastewater journal February 2018
Systems level roadmap for solvent recovery and reuse in industries journal October 2021
Ready, Set, Flow! Automated Continuous Synthesis and Optimization journal May 2021
Dual-Functional Hydrazide-Reactive and Anhydride-Containing Oligomeric Hydrogel Building Blocks journal February 2017
The Hitchhiker’s Guide to Flow Chemistry journal June 2017
Impact of Microwaves on Organic Synthesis and Strategies toward Flow Processes and Scaling Up journal June 2021
Preparation of Mono- and Diisocyanates in Flow from Renewable Carboxylic Acids journal May 2020
Driving Aspirational Process Mass Intensity Using Simple Structure-Based Prediction journal April 2022
Fast Amide Couplings in Water: Extraction, Column Chromatography, and Crystallization Not Required journal June 2020
Mild Esterification of Carboxylic Acids via Continuous Flow Diazotization of Amines journal August 2017
Second-Generation meta -Phenolsulfonic Acid–Formaldehyde Resin as a Catalyst for Continuous-Flow Esterification journal December 2019
Laboratory Ozonolysis Using an Integrated Batch–DIY Flow System for Renewable Material Production journal April 2022
Preparation of Biowax Esters in Continuous Flow Conditions journal July 2019
Acid Hydrazides, Potent Reagents for Synthesis of Oxygen-, Nitrogen-, and/or Sulfur-Containing Heterocyclic Rings journal February 2014
Synthesis of Nalidixic Acid Based Hydrazones as Novel Pesticides journal February 2010
A New Procedure for Preparation of Carboxylic Acid Hydrazides journal December 2002
KMnO4-Mediated Oxidation as a Continuous Flow Process journal July 2010
Overcoming the Challenges of Solid Bridging and Constriction during Pd-Catalyzed C−N Bond Formation in Microreactors journal September 2010
Continuous Flow Processing of Slurries: Evaluation of an Agitated Cell Reactor journal March 2011
Synthesis and characterization of a novel eco-friendly corrosion inhibition for mild steel in 1 M hydrochloric acid journal January 2016
In-Water and Neat Batch and Continuous-Flow Direct Esterification and Transesterification by a Porous Polymeric Acid Catalyst journal May 2016
The synthesis of di-carboxylate esters using continuous flow vortex fluidics journal January 2016
A toolbox for controlling the properties and functionalisation of hydrazone-based supramolecular hydrogels journal January 2016
Multi-step continuous-flow synthesis journal January 2017
An overview of the synthesis of acyl hydrazides from aldehydes and reactions of the products thereof journal January 2017
Acyl azide generation and amide bond formation in continuous-flow for the synthesis of peptides journal January 2020
Combining radial and continuous flow synthesis to optimize and scale-up the production of medicines journal January 2021
Synthetic Approaches to Acyl Hydrazides and Their Use as Synthons in Organic Synthesis journal May 2020
Safety and Runaway Prevention in Batch and Semibatch Reactors—A Review journal July 2006
Efficient Flow Fischer Esterification of Carboxylic Acids with Alcohols Using Sulfonic Acid-Functionalized Silica as Supported Catalyst journal April 2017
Acyl Azide Synthesis and Curtius Rearrangements in Microstructured Flow Chemistry Systems journal March 2012
An efficient microwave-assisted one-pot conversion of carboxylic acids into hydrazides journal December 2003
Synthesis of Oxadiazoles, Thiadiazoles and Triazoles Derived from Benzo[b]thiophene journal September 2005
High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid journal July 2022
Using Dihydrazides as Thermal Latent Curing Agents in Epoxy-Based Sealing Materials for Liquid Crystal Displays journal December 2020