Invention Grant
US4168284A Alpha olefin isomerization in preparing alkane phosphonic acids and
intermediates
失效
制备烷烃膦酸和中间体时的α-烯烃异构化
- Patent Title: Alpha olefin isomerization in preparing alkane phosphonic acids and intermediates
- Patent Title (中): 制备烷烃膦酸和中间体时的α-烯烃异构化
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Application No.: US897618Application Date: 1978-04-19
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Publication No.: US4168284APublication Date: 1979-09-18
- Inventor: Daniel S. Connor
- Applicant: Daniel S. Connor
- Applicant Address: OH Cincinnati
- Assignee: The Procter & Gamble Company
- Current Assignee: The Procter & Gamble Company
- Current Assignee Address: OH Cincinnati
- Main IPC: C07C5/25
- IPC: C07C5/25 ; C07F9/38 ; C07F9/40 ; C07C5/30
Abstract:
Preparation of long chain alkane phosphonic acids involves reacting alpha olefin with macroreticular strong acid cation exchange resin to isomerize the olefin, reacting resulting internally unsaturated olefin with dimethylphosphite to produce non-terminally substituted alkanephosphonic acid dimethyl ester, and demethylating with anhydrous hydrogen chloride or hydrogen bromide.
Public/Granted literature
- US4743228A Fluid flow monitoring method and system Public/Granted day:1988-05-10
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