ChemInform Abstract: Synthesis of 4-Aryl-1,7-naphthyridine-2(1H)-thiones by the Electrocyclic Reaction of 4-(1-Arylalk-1-enyl)-3-isothiocyanatopyridines Generated in situ from the Corresponding Isocyanides.

ChemInform ◽  
2012 ◽  
Vol 43 (35) ◽  
pp. no-no
Author(s):  
Kazuhiro Kobayashi ◽  
Taketoshi Kozuki ◽  
Teruhiko Suzuki
Keyword(s):  
Electrocyclic Reaction

The Formation of Quinolin-2(1H)-ones via Electrocyclic Reaction ofo-Isocyanatostyrenes Generated in situ fromo-Isocyanostyrenes

2000 ◽  
Vol 29 (7) ◽  
pp. 798-799 ◽  
Author(s):  
Kazuhiro Kobayashi ◽  
Taichi Kitamura ◽  
Keiichi Yoneda ◽  
Osamu Morikawa ◽  
Hisatoshi Konishi
Keyword(s):  
Electrocyclic Reaction

ChemInform Abstract: The Formation of Quinolin-2(1H)-ones via Electrocyclic Reaction of o-Isocyanatostyrenes Generated in situ from o-Isocyanostyrenes.

ChemInform ◽  
2000 ◽  
Vol 31 (48) ◽  
pp. no-no
Author(s):  
Kazuhiro Kobayashi ◽  
Taichi Kitamura ◽  
Keiichi Yoneda ◽  
Osamu Morikawa ◽  
Hisatoshi Konishi
Keyword(s):  
Electrocyclic Reaction

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

Sign in / Sign up

Export Citation Format

Share Document