公开(公告)号：DE1286046B

公开(公告)日：1969-01-02

申请号：DED0044156

申请日：1964-04-15

Applicant: DEGUSSA

Inventor： FAHNENSTICH ,  RUDOLF DR ,  WEIGERT ,  WOLFGANG DR

IPC: C07D309/06

Abstract: A process for preparing 2,6-diformyl-tetrahydropyrane or 2 - formyl - 6 - hydroxymethyl-tetrahydropyrane comprises subjecting 2-formyl - 3,4 - dihydro - 2H - pyrane or 2 - hydroxymethyl - 3,4 - dihydro - 2H - pyrane respectively, at a temperature of from 100 DEG to 200 DEG C. to the conditions of oxo-synthesis in the presence of carbon monoxide and hydrogen and of a hydroformylation catalyst.

公开(公告)号：DE1283815B

公开(公告)日：1968-11-28

申请号：DED0052592

申请日：1967-03-21

Applicant: DEGUSSA

Inventor： FAHNENSTICH ,  RUDOLF DR ,  SCHULZ ,  HERMANN DR

IPC: C01C3/00

Abstract: 1,183,162. Dicyanogen. DEUTSCHE GOLDUND - SILBER - SCHEIDEANSTALT. 12 March, 1968 [21 March, 1967], No. 11934/68. Heading C1A. Dicyanogen is produced by reacting cyanogen chloride in the gas phase at above 300‹ C. with silicon or a metal whose chloride has an enthalpy of formation of greater than 97 k. cal. mole or with an alloy of two or more of such elements or with an alloy containing one of such elements as the major constituent. The metal is preferably one whose enthalpy of formation is greater than 105 k. cal. mole . Examples of metals and alloys which may be used are aluminium, titanium, ferrosilicon, silunin and electrum. The reaction is preferably carried out at 500‹ to 1000‹ C.