138945-30-9

Upstream product

• 106-24-1 Geraniol 
• 59632-99-4 geranyl 2-tetrahydropyranyl ether 
• 100-39-0 benzyl bromide 

Downstream Products

• 138945-32-1 8-benzyloxy-3,7-dimethyl-(2E,6E)-2,6-octadienyl bromide 
• 138945-31-0 8-benzyloxy-3,7-dimethyl-(2E,6E)-2,6-octadienyl chloride 
• 1141380-16-6 8-benzyloxy-3,7-dimethyl-octa-(2E,6E)-dienyl diphosphate 

Relevant academic research and scientific papers

ISOPRENE OLIGOMER, POLYISOPRENE, PROCESSES FOR PRODUCING THESE MATERIALS, RUBBER COMPOSITION, AND PNEUMATIC TIRE

The invention relates to an isoprene oligomer that contains a trans structural moiety and a cis structural moiety, which can be represented by the following formula (1), wherein at least 1 atom or group in the trans structural moiety is replaced by another atom or group. The invention also relates to a polyisoprene, which is biosynthesized using the isoprene oligomer and isopentenyl diphosphate. Further, this invention provides a rubber composition comprising the isoprene oligomer and/or the polyisoprene, and a pneumatic tire, including tire components (e.g., treads and sidewalls) formed from the rubber composition. wherein n represents an integer from 1 to 10; m represents an integer from 1 to 30; and Y represents a hydroxy group, a formyl group, a carboxy group, an ester group, a carbonyl group, or a group represented by the following formula (2):

Stereoselective synthesis of both half segments for (-)-sarcophytonin A and (-)-sarcophytoxide

A stereoselective synthesis of a dihydrofuran derivative (5) and an allylhalide (8), possible precursors of the cembranes (-)-sarcophytonin A and (-)-sarcophytoxide, is described. The optically active dihydrofuran, right half, segment (49) was synthesized