Invention Grant
- Patent Title: Process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1-5-naphthalenediamine and 1,5-naphthalene diisocyanate
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Application No.: US10446319Application Date: 2003-05-28
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Publication No.: US07057071B2Publication Date: 2006-06-06
- Inventor: Joachim Zechlin , Kai Verkerk , Dietmar Wastian , Katrin Joschek , Tim Loddenkemper , Wilfried Pinke , Michael Schelhaas , Georg Ronge
- Applicant: Joachim Zechlin , Kai Verkerk , Dietmar Wastian , Katrin Joschek , Tim Loddenkemper , Wilfried Pinke , Michael Schelhaas , Georg Ronge
- Applicant Address: DE Leverkusen
- Assignee: Bayer MaterialScience AG
- Current Assignee: Bayer MaterialScience AG
- Current Assignee Address: DE Leverkusen
- Agent Joseph C. Gil; Lyndanne M. Whalen; John E. Mrozinski, Jr.
- Priority: DE10224463 20020603
- Main IPC: C07C209/36
- IPC: C07C209/36
Abstract:
The present invention relates to a process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate, in which 4-(2-nitrophenyl)-n-butyronitrile is converted to 4-(2-nitrophenyl)-n-butyric acid.
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