Specialized inFactory Supply (S)-(-)-2-Methyl-2-propanesulfinamide CAS 343338-28-3 With Best Priceand related product development and production

Samples: Available / Stock: Sufficient

Estimated delivery time: 3-5 days

Professional Guide: (S)-(-)-2-Methyl-2-propanesulfinamide (CAS 343338-28-3)

1. Product Overview

(S)-(-)-2-Methyl-2-propanesulfinamide (CAS 343338-28-3) is a high-purity chiral sulfinamide compound widely used in asymmetric synthesis. Key specifications include:

Chemical Name: (S)-(-)-2-Methyl-2-propanesulfinamide
CAS Number: 343338-28-3
Molecular Formula: C₄H₁₁NOS
Molecular Weight: 121.2 g/mol
Appearance: White to off-white crystalline powder
Purity: ≥99% (HPLC)
Storage: 2-8°C in a dry, airtight container

2. Applications

This compound serves as a critical chiral auxiliary in organic synthesis, particularly for:

Asymmetric catalysis in pharmaceutical intermediates
Stereoselective synthesis of amines and amino acids
Preparation of chiral ligands for metal complexes
Resolution of racemic mixtures in fine chemical production

3. Usage Guidelines

Step-by-Step Protocol:

Weigh the required quantity under inert atmosphere (e.g., N₂ or Argon).
Dissolve in anhydrous dichloromethane (DCM) or tetrahydrofuran (THF) at 0-5°C.
Add stoichiometric equivalents of reactants (typically 1.1-1.5 eq) slowly with stirring.
Maintain reaction temperature between -20°C to 25°C as specified in synthesis protocols.
Monitor reaction progress by TLC or HPLC until completion (4-24 hours).
Quench reaction with ice-cold water and extract with ethyl acetate.
Purify via column chromatography (hexane/ethyl acetate gradient).

Safety Note: Use personal protective equipment (PPE) and handle in fume hood.

4. Case Studies

Case 1: Synthesis of (R)-Terbutaline Intermediate

Researchers achieved 92% enantiomeric excess (ee) using 0.5 mol% of (S)-(-)-2-Methyl-2-propanesulfinamide in a key asymmetric Strecker reaction:

Reactants:
- Benzaldehyde (1.0 eq)
- TMSCN (1.2 eq)
- (S)-sulfinamide (0.5 mol%)

Conditions:
- Solvent: DCM
- Temperature: -15°C
- Time: 18 hours

Result:
- Yield: 85%
- ee: 92%

Case 2: Chiral Ligand Preparation

The compound facilitated preparation of a novel palladium complex with 98% diastereoselectivity in cross-coupling reactions.

5. Contact Information

For technical inquiries or bulk orders:

Email: info@vivalr.com
Phone: (86) 15866781826

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The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.

Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.

Drug impurities to intermediates. Years of expertise.

Experience in the synthesis of complex compounds derived from American technology
Focus on the synthesis of difficult compounds
ISO 17034 dual system certification
National high-tech enterprise
2000 square R&D center
More than 20 research and development personnel,
12 sets of research and development equipment, 10 fume hoods and 6 university laboratories have been developed in cooperation
18 patents, 140 sets of chemical synthesis processes

Solid QMS. Offer top-quality products and services.

Through more than ten years of continuous technological innovation and experience accumulation, the team's R&D personnel have established a complete quality management system for CATO, and have successively obtained ISO9001, ISO17034, CNAS and other international certifications.
For the United States, Australia, Japan, South Korea, Sweden, France, Spain and other global more than 2000 customers to provide high-quality products and services, has won the recognition and trust of customers in the industry.

More than 12 sets of equipment to ensure quality.

The emphasis on quality is the basis for our survival and development, and is the most basic requirement for the products and services we provide. CATO has established a scientific, strict and comprehensive quality prevention and assurance system in accordance with international quality standards. Through advanced testing equipment such as GC-MS, chromatograph, nuclear magnetic resonance, scanning electron microscope, and ultraviolet light, quality management is implemented into every aspect of production and operation activities such as raw materials, inventory, production, testing, sales, verification, and training, and "All actions are controlled and traceable" as the work code of conduct for CATO employees.

Over 1000 cases. Synthesize complex compounds.

Currently, CATO serves more than 500 pharmaceutical companies, biotechnology and other companies around the world. Project types cover the entire cycle from pre-clinical to commercialization stages. As of 2020, CATO has delivered more than 1,000 projects in total.
The company has core technologies in key core technology fields such as high-end fluorine chemistry, asymmetric chiral synthesis, glycoside and biological enzyme technology, and continuous microreactors.

Mode of Transportation

By Air, fast but expensive.

By Sea, usual and economy.

By Train, suit for middle Asia countries.

FAQ

Does it support auditing?

Environmental Protection Science and Technology Park, Zhengfeng Road, High-tech Zone, Jinan City, Shandong Province

Whether to provide samples?

Free samples can be provided, and customers only need to pay the corresponding shipping costs

Delivery time

There are stock in the warehouse, and some products need to be customized for production within 3 working days, depending on the workshop situation and production schedule

What payment methods and currencies are accepted here?

We accept payment methods such as TT, Western Union, and letter of credit, etc. Meanwhile, we support currencies like US dollars, euros, RMB, and Bitcoin, etc.

Can additional test indicators be added?

We can provide moisture, UV, IR, HNMR, CNMR, two-dimensional nuclear magnetic spectroscopy, optical rotation detection, elemental analysis, TGA analysis and residue analysis and other related tests to support personalized needs.

Technical direction

In the early stage, our company mainly engaged in drug impurity synthesis and standard product production, with core technologies in chirality, fluorine chemistry, and heterocycles.

Why Vivalr’s delivery rate is guaranteed to be 99.99%

2000+

square meter R&D center

12+

China(set) of R&D equipment

10+

Fume hood

20+

R&D team

User’evaluation of us

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