The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2008
Filed:
May. 17, 2007
Applicants:
Runpu Shen, Xinchang, CN;
Guoqi Yu, Xinchang, CN;
Weidong YE, Xinchang, CN;
Kui Wang, Xinchang, CN;
Xuejun Lao, Xinchang, CN;
Inventors:
Runpu Shen, Xinchang, CN;
Guoqi Yu, Xinchang, CN;
Weidong Ye, Xinchang, CN;
Kui Wang, Xinchang, CN;
Xuejun Lao, Xinchang, CN;
Assignees:
Shaoxing University, Shaoxing, CN;
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Xinchang, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
1-Chloro-2-methyl-4-acyloxy-2-butene derivatives can be synthesized in good yields and high purity starting from isoprene and employing a chlorohydrin formation reaction in a system made of N-chloroisocyanuric acid derivatives and water, followed by esterification and rearrangement of the crude product mixture.