CAS: 7789-12-0; Sodium Dichromate Dihydrate

专利信息

专利号:US-3960896-A
优先权日:1973-05-24
标题:Aryl ketals of polycyclic oxo compounds and processes
发明人：ROSENBERGER MICHAEL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:The intermediates and processes of this disclosure provide a new stereo-specific total synthesis of steroidal materials having known valuable pharmacological properties. A fundamental feature of this diclosure is the utilization of aryl ketals, preferably phenylenedioxy ketals derived from catechol as protective groups for oxo moieties in the polycyclic intermediates used in the aforesaid total synthesis.

专利号:US-3758509-A
优先权日:1969-05-13
标 题 :Aryl ketals of polycyclic oxo compounds and processes
发明人：ROSENBERGER M; SAUCY G
权利人:HOFFMANN LA ROCHE
摘要:THE INTERMEDIATES AND PROCESSES OF THIS DISCLOSURE PROVIDE A NEW STEREO-SPECIFIC TOTAL SYNTHESIS OF STEROIDAL MATERIALS HAVING KNOWN VALUABLE PHARMACOLOGICAL PROPERTIES. A FUNDAMENTAL FEATURE OF THIS DISCLOSURE IS THE UTILIZATION OF ARYL KETALS, PREFERABLY PHENYLENEDIOXY KETALS DERIVED FROM CATECHOL AS PROTECTIVE GROUPS FOR OXO MOIETIES IN THE POLYCYCLIC INTERMEDIATES USED IN THE AFORESAID TOTAL SYNTHESIS.

专利号:US-3856817-A
优先权日:1969-05-13
标题:Aryl ketals of polycyclic oxo compounds and processes
发明人：ROSENBERGER M; SAUCY G
权利人:HOFFMANN LA ROCHE
摘要:The intermediates and processes of this disclosure provide a new stereo-specific total synthesis of steroidal materials having known valuable pharmacological properties. A fundamental feature of this disclosure is the utilization of aryl ketals, preferably phenylenedioxy ketals derived from catechol as protective groups for oxo moieties in the polycyclic intermediates used in the aforesaid total synthesis.

专利号:US-3950358-A
优先权日:1972-09-14
标 题 :Aryl ketals of 3,7-dihydroxy-11-oxo-dodec-1-ene
发明人：ROSENBERGER MICHAEL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:The intermediates and processes of this disclosure provide a new stereo-specific total synthesis of steroidal materials having known valuable pharmacological properties. A fundamental feature of this disclosure is the utilization of aryl ketals, preferably phenylenedioxy ketals derived from catechol as protective groups for oxo moieties in the polycyclic intermediates used in the aforesaid total synthesis.

专利号:US-3907827-A
优先权日:1970-09-22
标 题:Aryl ketals of polycyclic oxo compounds and processes
发明人：ROSENBERGER MICHAEL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:The intermediates and processes of this disclosure provide a new stereo-specific total synthesis of steroidal materials having known valuable pharmacological properties. A fundamental feature of this disclosure is the utilization of aryl ketals, preferably phenylenedioxy ketals derived from catechol as protective groups for oxo moieties in the polycyclic intermediates used in the aforesaid total synthesis.

专利号:US-4677190-A
优先权日:1986-05-09
标题 :Synthesis and ring-opening polymerization of bicyclic lactones containing a tetrahydropyran ring
发明人：HALL JR HENRY K; SUMITOMO HIROSHI; OKADA MASAHIKO
权利人:UNIVERSITY PATENTS INC
摘要:The synthesis of novel strained bicyclic lactones and their ring-opening polymerization to high molecular weight polyester polymers is disclosed.